📋 Table of Contents
⚡ Formula Bank
🪤 The 5 Mistakes That Cost Marks
✏️ 3 Solved PYQs
🧠 The One Thing Most Students Get Wrong
👁️ Ayush's Note
🔁 Last 5 Minutes Box
📝 Practice MCQs

📋 Table of Contents

⚡ Formula Bank
- Formula Bank for Tenses
- Which Formula When?
🪤 The 5 Mistakes That Cost Marks
- The 5 Mistakes That Cost Marks
✏️ 3 Solved PYQs
- ✏️ 3 Solved PYQs
🧠 The One Thing Most Students Get Wrong
- The One Thing Most Students Get Wrong
👁️ Ayush's Note
- 👁️ Ayush's Note
🔁 Last 5 Minutes Box
- 🔁 Last 5 Minutes Box
📝 Practice MCQs

⚡ Formula Bank

Formula Bank for Tenses

Present Tense Formulas

Present Simple: verb + s (for third-person singular) — used for habitual actions
Present Continuous: am/is/are + verb + ing — used for actions happening now
Present Perfect: has/have + verb + ed — used for actions started in the past and continued up to the present
Present Perfect Continuous: has/have + been + verb + ing — used for actions started in the past and continued up to the present Examiner's Trap: Be careful with the usage of present perfect and present perfect continuous, as they are often confused.

Past Tense Formulas

Past Simple: verb + ed (for regular verbs) — used for completed actions in the past
Past Continuous: was/were + verb + ing — used for actions happening at a specific time in the past
Past Perfect: had + verb + ed — used for actions that happened before another action in the past
Past Perfect Continuous: had + been + verb + ing — used for actions that started before another action in the past Examiner's Trap: Pay attention to the usage of past perfect and past perfect continuous, as they require a specific context.

Future Tense Formulas

Future Simple: will + verb — used for future actions
Future Continuous: will + be + verb + ing — used for actions that will be in progress at a specific time in the future
Future Perfect: will + have + verb + ed — used for actions that will be completed at a specific time in the future
Future Perfect Continuous: will + have + been + verb + ing — used for actions that will start before a specific time in the future Examiner's Trap: Be aware of the differences between future simple, future continuous, and future perfect.

Conditional Tense Formulas

Zero Conditional: if + present simple + present simple — used for universal truths
First Conditional: if + present simple + future simple — used for future possibilities
Second Conditional: if + past simple + would + verb — used for hypothetical situations
Third Conditional: if + past perfect + would + have + verb + ed — used for past hypothetical situations Examiner's Trap: Make sure to use the correct conditional tense based on the context.

Passive Voice Formulas

Present Simple Passive: is/are + verb + ed — used for actions where the focus is on the object
Past Simple Passive: was/were + verb + ed — used for completed actions in the past where the focus is on the object
Present Perfect Passive: has/have + been + verb + ed — used for actions started in the past and continued up to the present where the focus is on the object Examiner's Trap: Be cautious when using passive voice, as it can change the meaning of the sentence.

Which Formula When?

Tense	Formula	Usage
Present Simple	verb + s	habitual actions
Present Continuous	am/is/are + verb + ing	actions happening now
Present Perfect	has/have + verb + ed	actions started in the past and continued up to the present
Past Simple	verb + ed	completed actions in the past
Past Continuous	was/were + verb + ing	actions happening at a specific time in the past
Future Simple	will + verb	future actions
Future Continuous	will + be + verb + ing	actions that will be in progress at a specific time in the future
Conditional	if + present simple + future simple	future possibilities
Passive Voice	is/are + verb + ed	actions where the focus is on the object

🪤 The 5 Mistakes That Cost Marks

The 5 Mistakes That Cost Marks

Mistake 1 — Tense Consistency Error:
🔴 What students write: "I go to school yesterday."
✅ What examiners expect: "I went to school yesterday." (use of correct verb form for past tense)
💸 Marks lost: 1 mark
🔧 The fix (30-second trick): Always check the time frame of the sentence; if it's past, use the past tense (e.g.
went, not go).
Mistake 2 — Incorrect Use of Present Continuous:
🔴 What students write: "I am going to school tomorrow." (in a context where a future plan is being discussed)
✅ What examiners expect: "I am going to school tomorrow" is fine but "I go to school tomorrow" or "I will go to school tomorrow" are more conventional; use present continuous for future plans when a specific time or arrangement is mentioned (e.g.
"I am going to school tomorrow because I have a meeting").
💸 Marks lost: 1–2 marks
🔧 The fix (30-second trick): For future actions, use present continuous for planned actions (e.g.
"I am going") and 'will' for general future predictions (e.g.
"I will go").
Mistake 3 — Forgetting the Subject-Verb Agreement:
🔴 What students write: "The team are going to the match."
✅ What examiners expect: "The team is going to the match." (singular subject takes a singular verb)
💸 Marks lost: 1 mark
🔧 The fix (30-second trick): Ensure the verb agrees with the subject; a singular subject (e.g.
team) takes a singular verb (e.g.
is), and a plural subject (e.g.
teams) takes a plural verb (e.g.
are).
Mistake 4 — Misusing the Past Perfect Tense:
🔴 What students write: "I had eaten dinner before I go to bed."
✅ What examiners expect: "I had eaten dinner before I went to bed." (correct use of past perfect with simple past)
💸 Marks lost: 2 marks
🔧 The fix (30-second trick): Use the past perfect (had + past participle) for an action that occurred before another action in the past; ensure the second action is in simple past (e.g.
went).
Mistake 5 — Confusing Active and Passive Voice:
🔴 What students write: "The ball was thrown by me." (in a context where active voice is more suitable)
✅ What examiners expect: Sometimes active voice is preferred for clarity and directness; use passive voice when the doer of the action is not important or unknown (e.g.
"The package was delivered").
💸 Marks lost: 1–2 marks
🔧 The fix (30-second trick): Use active voice when you want to emphasize the doer of the action and passive voice when the action is more important than the doer.

✏️ 3 Solved PYQs

Q1 (2026 CBSE): Change the following sentence into the passive voice: "The teacher gave the students a lot of homework."

🪤 Trap: 70% of students forget to change the object "students" to the subject in the passive voice.
🧮 Solution (Step-by-step): Step 1: Identify the subject and object in the active voice → The subject is "The teacher", the object is "the students". Step 2: Change the object to the subject in the passive voice → "The students" becomes the subject. Step 3: Use the correct form of the verb "to be" and the past participle of the main verb → "were given". Step 4: Rearrange the sentence → "The students were given a lot of homework by the teacher." Final Answer: The students were given a lot of homework by the teacher.

⚡ Speed trick: Focus on identifying the main verb and object, then apply the passive voice structure directly.

Q2 (2020 CBSE): Identify the tense of the following sentence: "By the time I arrived, they had already eaten dinner."

🪤 Trap: 70% of students confuse the tense with the simple past.
🧮 Solution (Step-by-step): Step 1: Identify the verb phrase indicating tense → "had already eaten". Step 2: Recognize the verb form as the past perfect tense → indicates an action completed before another action in the past. Step 3: Confirm the tense → The sentence is in the past perfect tense. Final Answer: Past Perfect

⚡ Speed trick: Look for "had" + past participle for past perfect tense.

Q3 (2019 CBSE): Change the following sentence into the reported speech: "Rohan said, 'I will meet you at 5 o'clock.'"

🪤 Trap: 70% of students forget to change the tense of the reported verb.
🧮 Solution (Step-by-step): Step 1: Identify the reporting verb and the reported speech → Reporting verb: "said", Reported speech: "I will meet you at 5 o'clock". Step 2: Change the reported speech to the past tense → "I would meet you at 5 o'clock" or "he would meet me at 5 o'clock" (depending on the context). Step 3: Rearrange the sentence → "Rohan said that he would meet me at 5 o'clock." Final Answer: Rohan said that he would meet me at 5 o'clock.

⚡ Speed trick: Change the tense of the reported verb one step back (e.g., "will" becomes "would").

🧠 The One Thing Most Students Get Wrong

The One Thing Most Students Get Wrong

The misconception (what 85% believe):

Many students believe that the present perfect tense is used to describe an action that happened at a specific time in the past.
They think it is interchangeable with the simple past tense when talking about completed actions.

The reality (what 99% know):

The present perfect tense is used to describe an action that started in the past and continues up to the present moment, or has a connection to the present.
It is formed using "has/have" + the past participle of the verb.
For example: "I have eaten breakfast" (implies that the action of eating breakfast has a connection to the present).

The diagnostic question:

Which of the following sentences uses the present perfect tense correctly?
A) I go to the store yesterday.
B) I have gone to the store yesterday.
C) I went to the store yesterday.
D) I have gone to the store.
If you answered B) I have gone to the store yesterday: you have the misconception → fix: The present perfect tense cannot be used with specific past time expressions like "yesterday".
Use the simple past tense instead: "I went to the store yesterday".
If you answered D) I have gone to the store: you are in the top 5% → now extend this: The sentence implies that the action of going to the store has a connection to the present, perhaps indicating that the speaker is still at the store or has just returned.

How to never forget this:

Use a mental timeline to distinguish between the present perfect and simple past tenses. Imagine a line with the present moment on the right and the past on the left. The present perfect tense always has a "bridge" to the present, while the simple past tense is confined to a specific point in the past.
Create a mnemonic: "PRESENT PERFECT = PAST + PRESENT CONNECTION" to help you remember the correct usage.

👁️ Ayush's Note

🔮 The Hidden Pattern: Tenses and Modals have a strong connection. In 30%+ of papers, questions combine modal verbs (can, could, may, might, shall, should, will, would) with tenses. Focus on how modals change verb forms across different tenses.
🎯 The "Always Check" Rule: When using the present perfect or past perfect tense, always check if the sentence requires "since" or "for." This helps in choosing between simple past and past perfect correctly.
📊 PYQ Frequency Intel:
2019: Questions on simple past vs. past perfect (4 marks), present continuous tense (3 marks), and future perfect tense (2 marks).
2021: Conditional sentences (5 marks) and reported speech with tense changes (4 marks).
2023: Tense consistency in paragraphs (5 marks) and identifying tense errors (3 marks).
⚡ The 30-Second Shortcut: To quickly identify the correct tense in a sentence, use the time expression trick:
Look for keywords like "yesterday" (simple past), "tomorrow" (future simple), "since 2018" (present perfect), or "by next year" (future perfect). This helps in eliminating incorrect options within 30 seconds.

🔁 Last 5 Minutes Box

⚡ Core Formulas

Verb + -ing — forms the present continuous tense
Verb + -ed — forms the past simple tense
will + Verb — forms the future simple tense
was/were + Verb + -ing — forms the past continuous tense
had + Verb + -ed — forms the past perfect tense

🧠 Must-Know Facts

The present simple tense is used for habits and routines
The past perfect tense is used for actions that happened before another action in the past
The future perfect tense is used for actions that will be completed before a specific time in the future

🚫 Never Forget

❌ Assuming the present perfect tense is only used for completed actions → ✅ it can also be used for actions that started in the past and continue up to the present
❌ Forgetting to use the correct form of the verb in the conditional tenses → ✅ using the correct form of the verb is crucial in the conditional tenses

🎯 If you can only remember ONE thing: The key to mastering tenses is to understand the context and time reference of each sentence.

📝 Practice MCQs

1. Which of the following sentences is in the present perfect tense? A) I go to school. B) I am going to school. C) I have gone to school. D) I went to school.

Answer: C) The present perfect tense is used to describe an action that started in the past and continues up to the present. Option C, 'I have gone to school.', is the only sentence that matches this description. Option A is in the simple present tense, option B is in the present continuous tense, and option D is in the simple past tense.

2. If it α = 2β, and the simple past tense of 'go' is 'went' at β = 30°, what is the value of α in degrees? A) 30° B) 60° C) 90° D) 120°

Answer: B) Given α = 2β and β = 30°, we can substitute the value of β into the equation to get α = 2 × 30° = 60°. Therefore, option B is correct. Options A, C, and D are incorrect because they do not satisfy the given equation.

3. Which of the following verb forms is used to describe an action that will be completed at a specific time in the future? A) I will go to school. B) I will be going to school. C) I will have gone to school. D) I am going to school.

Answer: C) The future perfect tense is used to describe an action that will be completed at a specific time in the future. Option C, 'I will have gone to school.', is the only sentence that matches this description. Option A is in the simple future tense, option B is in the future continuous tense, and option D is in the present continuous tense.

4. A car travels a distance of 250 km in 5 hours. What is the average speed of the car in km/h? A) 25 km/h B) 50 km/h C) 60 km/h D) 75 km/h

Answer: B) To find the average speed, we divide the total distance traveled by the total time taken. Therefore, the average speed = 250 km / 5 h = 50 km/h. Option B is correct. Options A, C, and D are incorrect because they do not match the calculated value.

5. Which of the following sentences is in the past perfect continuous tense? A) I had gone to school. B) I was going to school. C) I had been going to school. D) I went to school.

Answer: C) The past perfect continuous tense is used to describe an action that started before a specific time in the past and continued up to that time. Option C, 'I had been going to school.', is the only sentence that matches this description. Option A is in the past perfect tense, option B is in the past continuous tense, and option D is in the simple past tense.

🚀 Ready to Ace Your Exam?

Put your knowledge to the test! Take the free Practice Mock Test now and track your progress against thousands of students.

🎬 Watch video explanations on YouTube →

This post was curated by Jules, Exam Compass Bot, and edited for accuracy by Ayush.

📚 Related Topics

Continue your revision with these related guides:

📋 Table of Contents
⚡ Formula Bank
🪤 The 5 Mistakes That Cost Marks
✏️ 3 Solved PYQs
🧠 The One Thing Most Students Get Wrong
👁️ Ayush's Note
🔁 Last 5 Minutes Box
📝 Practice MCQs