📚 Study Notes – English Tenses
For Competitive Exams (IIT‑JEE, JEE‑Main, JEE‑Advanced, etc.)
Goal: Master the 12 tenses, understand their formation, usage, and common pitfalls.
Tip: Memorize the “tense‑matrix” (Table 1) and practice the tense‑shift exercise (see the hard practice question below).
1. Quick Overview
| Aspect | Present | Past | Future |
|---|---|---|---|
| Simple | 3rd sg. + ‑s | (base) + ‑ed (regular) / irregular | will + base |
| Continuous | am/are/is + ‑ing | was/were + ‑ing | will be + ‑ing |
| Perfect | have/has + past‑participle | had + past‑participle | will have + past‑participle |
| Perfect‑Continuous | have/has been + ‑ing | had been + ‑ing | will have been + ‑ing |
Key: Be is used in continuous, have in perfect, and be + ‑ing in perfect‑continuous.
2. 12 Tenses – Form & Usage
| # | Tense | Formula | Example | When to Use |
|---|---|---|---|---|
| 1 | Simple Present | S + V (third‑person + s or es) | She reads. | Habitual actions, general truths |
| 2 | Present Continuous | S + am/is/are + V‑ing | She is reading. | Actions happening now, near‑future plans |
| 3 | Present Perfect | S + have/has + P.P. | She has read. | Completed actions with present relevance |
| 4 | Present Perfect Continuous | S + have/has been + V‑ing | She has been reading. | Duration of an action that started in the past |
| 5 | Simple Past | S + P.P. (irregular) | She read. | Completed actions in past |
| 6 | Past Continuous | S + was/were + V‑ing | She was reading. | Ongoing past action, background |
| 7 | Past Perfect | S + had + P.P. | She had read. | Action finished before another past event |
| 8 | Past Perfect Continuous | S + had been + V‑ing | She had been reading. | Duration before a past event |
| 9 | Simple Future | S + will + V | She will read. | Predictions, promises |
| 10 | Future Continuous | S + will be + V‑ing | She will be reading. | Ongoing future action |
| 11 | Future Perfect | S + will have + P.P. | She will have read. | Action finished before a future reference point |
| 12 | Future Perfect Continuous | S + will have been + V‑ing | She will have been reading. | Duration before a future event |
Abbreviation Key:
V – base verb, V‑ing – gerund, P.P. – past participle, S – subject.
3. Key Formulae & Patterns
| Pattern | Formula | Example | Common Tricky Point |
|---|---|---|---|
| Negative Simple | S + do/does/did + not + V | She does not read. | Forget do in negative forms |
| Negative Continuous | S + am/is/are/were + not + V‑ing | She is not reading. | Not goes after be |
| Negative Perfect | S + have/has/had + not + P.P. | She has not finished. | Not after have |
| Question Simple | Do/does/did + S + V | Does she read? | Third‑person does |
| Question Continuous | Am/are/is/were + S + V‑ing | Is she reading? | Use be as auxiliary |
| Question Perfect | Have/has/had + S + P.P. | Has she finished? | No do auxiliary |
4. Common Pitfalls & Tricky Points
| Pitfall | What Happens | Fix |
|---|---|---|
| Wrong auxiliary in negative questions | Doesn't she reading? | Use does not + base verb, not doesn't + ‑ing |
| Mixing will and shall | Shall we go? (formal) | Use will in most contexts; shall mainly in questions with I or we |
| Over‑use of continuous in simple actions | He is cooking dinner. (habit) | Use simple present for habitual actions |
| Incorrect past‑participle for irregular verbs | She has go to school. | Memorize irregular list (e.g., go → gone, see → seen) |
| Confusing present perfect vs. past simple | I have seen that movie vs. I saw that movie | Use present perfect for present relevance, past simple for specific past time |
5. Derivation Technique – Tense‑Shift Exercise
- Pick a sentence in any tense.
- Identify the tense type (Simple, Continuous, Perfect, Perfect‑Continuous).
- Convert it into the four other forms (present ↔ past ↔ future).
- Check for correct auxiliary, ‑ing, or ‑ed forms.
Example:
She is reading a book.
Past Continuous: She was reading a book.