Indicative
Present
| I | tighten |
| you | tighten |
| he / she / it | tightens |
| we | tighten |
| they | tighten |
| you (plural) | tighten |
Past simple
| I | tightened |
| you | tightened |
| he / she / it | tightened |
| we | tightened |
| they | tightened |
| you (plural) | tightened |
Future simple
| I | will tighten |
| you | will tighten |
| he / she / it | will tighten |
| we | will tighten |
| they | will tighten |
| you (plural) | will tighten |
Present continuous
| I | am tightening |
| you | are tightening |
| he / she / it | is tightening |
| we | are tightening |
| they | are tightening |
| you (plural) | are tightening |
Past continuous
| I | was tightening |
| you | were tightening |
| he / she / it | was tightening |
| we | were tightening |
| they | were tightening |
| you (plural) | were tightening |
Future continuous
| I | will be tightening |
| you | will be tightening |
| he / she / it | will be tightening |
| we | will be tightening |
| they | will be tightening |
| you (plural) | will be tightening |
Present perfect
| I | have tightened |
| you | have tightened |
| he / she / it | has tightened |
| we | have tightened |
| they | have tightened |
| you (plural) | have tightened |
Past perfect
| I | had tightened |
| you | had tightened |
| he / she / it | had tightened |
| we | had tightened |
| they | had tightened |
| you (plural) | had tightened |
Future perfect
| I | will have tightened |
| you | will have tightened |
| he / she / it | will have tightened |
| we | will have tightened |
| they | will have tightened |
| you (plural) | will have tightened |
Conditional
Present
| I | would tighten |
| you | would tighten |
| he / she / it | would tighten |
| we | would tighten |
| they | would tighten |
| you (plural) | would tighten |
Conditional perfect
| I | would have tightened |
| you | would have tightened |
| he / she / it | would have tightened |
| we | would have tightened |
| they | would have tightened |
| you (plural) | would have tightened |
Subjunctive
Present
| I | tighten |
| you | tighten |
| he / she / it | tighten |
| we | tighten |
| they | tighten |
| you (plural) | tighten |
Imperative
Affirmative
| you | tighten |
| we | let's tighten |
| you (plural) | tighten |
Practice in context
Fill in the verb in real sentences — correct answers count toward the table above.