| I | tighten |
| you | tighten |
| he/she/it | tightens |
| we | tighten |
| you | tighten |
| they | tighten |
| I | have tightened |
| you | have tightened |
| he/she/it | has tightened |
| we | have tightened |
| you | have tightened |
| they | have tightened |
| I | tightened |
| you | tightened |
| he/she/it | tightened |
| we | tightened |
| you | tightened |
| they | tightened |
| I | had tightened |
| you | had tightened |
| he/she/it | had tightened |
| we | had tightened |
| you | had tightened |
| they | had tightened |
| I | will tighten |
| you | will tighten |
| he/she/it | will tighten |
| we | will tighten |
| you | will tighten |
| they | will tighten |
| I | will have tightened |
| you | will have tightened |
| he/she/it | will have tightened |
| we | will have tightened |
| you | will have tightened |
| they | will have tightened |
| I | am tightening |
| you | are tightening |
| he/she/it | is tightening |
| we | are tightening |
| you | are tightening |
| they | are tightening |
| I | have been tightening |
| you | have been tightening |
| he/she/it | has been tightening |
| we | have been tightening |
| you | have been tightening |
| they | have been tightening |
| I | was tightening |
| you | were tightening |
| he/she/it | was tightening |
| we | were tightening |
| you | were tightening |
| they | were tightening |
| I | had been tightening |
| you | had been tightening |
| he/she/it | had been tightening |
| we | had been tightening |
| you | had been tightening |
| they | had been tightening |
| I | will be tightening |
| you | will be tightening |
| he/she/it | will be tightening |
| we | will be tightening |
| you | will be tightening |
| they | will be tightening |
| I | will have been tightening |
| you | will have been tightening |
| he/she/it | will have been tightening |
| we | will have been tightening |
| you | will have been tightening |
| they | will have been tightening |
| I | would tighten |
| you | would tighten |
| he/she/it | would tighten |
| we | would tighten |
| you | would tighten |
| they | would tighten |
| I | would have tightened |
| you | would have tightened |
| he/she/it | would have tightened |
| we | would have tightened |
| you | would have tightened |
| they | would have tightened |
| I | would be tightening |
| you | would be tightening |
| he/she/it | would be tightening |
| we | would be tightening |
| you | would be tightening |
| they | would be tightening |
| I | would have been tightening |
| you | would have been tightening |
| he/she/it | would have been tightening |
| we | would have been tightening |
| you | would have been tightening |
| they | would have been tightening |
| You | tighten |
| we | Let's tighten |
| You | tighten |