SSC GD Constable – English Language
Topic: Tenses
Goal: Understand the six basic tenses, how they are formed, and when to use them in written and spoken English.
1. Simple Explanation
English verbs change form to show time (when an action happens) and aspect (how the action is viewed).
There are three times (Past, Present, Future) and two aspects (Simple & Continuous).
Adding “perfect” or “perfect‑continuous” gives us 6 simple tenses and 6 compound tenses, totaling 12 major tenses used in English.
2. Key Points
| Tense | Form | When Used | Typical Example |
|---|---|---|---|
| Present Simple | base verb (he/she/it + s) |
Habitual actions, general truths | She writes every day. |
| Past Simple | verb‑ed / irregular |
Completed actions in the past | They visited Paris last year. |
| Future Simple | will + base verb | Predictions, promises | It will rain tomorrow. |
| Present Continuous | am/is/are + verb‑ing |
Actions in progress now | I am studying. |
| Past Continuous | was/were + verb‑ing |
Ongoing actions in the past | She was cooking when I called. |
| Future Continuous | will be + verb‑ing |
Ongoing actions in the future | They will be traveling at 8 pm. |
| Present Perfect | have/has + past participle | Actions started in the past, still relevant | He has finished the report. |
| Past Perfect | had + past participle | Action completed before another past event | She had left before I arrived. |
| Future Perfect | will have + past participle | Action completed before a future time | By next year, I will have graduated. |
| Present Perfect Continuous | have/has been + verb‑ing |
Duration of an action from past to now | They have been working for 3 hours. |
| Past Perfect Continuous | had been + verb‑ing |
Duration of an action before another past event | He had been studying when the phone rang. |
| Future Perfect Continuous | will have been + verb‑ing |
Duration up to a future point | By 2025, she will have been teaching for 20 years. |
Common Patterns
| Tense | Subject | Auxiliary | Main Verb |
|---|---|---|---|
| Simple | 1st/2nd/3rd person | none | base form (or s for 3rd) |
| Continuous | any | am/is/are / was/were / will be | verb‑ing |
| Perfect | any | have/has / had / will have | past participle |
| Perfect‑Continuous | any | have/has / had / will have + been | verb‑ing |
Do’s & Don’ts
- Do use Present Perfect for experiences that may happen again.
- Don’t use Past Simple for actions that continue in the present.
- Do use Past Continuous to set background for an event.
- Don’t say She is finished – use She has finished or She finished.
3. Worked Example
Task: Convert the sentence from Present Simple → Past Continuous → Present Perfect Continuous.
-
Present Simple
She works in a hospital. -
Past Continuous
She was working in a hospital. -
Present Perfect Continuous
She has been working in a hospital.
Explanation of changes
| Step | Reason | Verb form |
|---|---|---|
| 1 → 2 | Show action in progress at a specific past time | was working |
| 2 → 3 | Show action that started in the past and continues to the present | has been working |
4. Quick Revision Summary
| Feature | Present | Past | Future | Perfect | Continuous | Perfect‑Continuous |
|---|---|---|---|---|---|---|
| Simple | base / +s |
verb‑ed / irregular |
will + base |
have/has + past participle |
– | – |
| Continuous | am/is/are + verb‑ing |
was/were + verb‑ing |
will be + verb‑ing |
– | – | – |
| Perfect | – | – | – | have/has + past participle |
– | – |
| Perfect‑Continuous | – | – | – | – | – | have/has/had + been + verb‑ing |
Quick Checklist for Exam
- Identify the time of the action.
- Check for duration or completion – choose perfect or continuous accordingly.
- Match the subject with the correct auxiliary (am/is/are for 1st/3rd person singular, are for plural).
- Avoid mixing tenses unintentionally (e.g., She will have been studying – correct, She will have studying – wrong).
Tip: Practice by rewriting short paragraphs in different tenses, then compare with the table above. This will cement the pattern recognition needed for the SSC GD Constable exam. Good luck!