| Simple | Progressive | Perfect | Progressive |
| Present |
| I collapse |
| you collapse |
| he/she/it collapses |
| we collapse |
| you all collapse |
| they collapse |
|
| I am collapsing |
| you are collapsing |
| he/she/it is collapsing |
| we are collapsing |
| you all are collapsing |
| they are collapsing |
|
| I have collapsed |
| you have collapsed |
| he/she/it has collapsed |
| we have collapsed |
| you all have collapsed |
| they have collapsed |
|
| I have been collapsing |
| you have been collapsing |
| he/she/it has been collapsing |
| we have been collapsing |
| you all have been collapsing |
| they have been collapsing |
|
| Past |
| I collapsed |
| you collapsed |
| he/she/it collapsed |
| we collapsed |
| you all collapsed |
| they collapsed |
|
| I was collapsing |
| you were collapsing |
| he/she/it was collapsing |
| we were collapsing |
| you all were collapsing |
| they were collapsing |
|
| I had collapsed |
| you had collapsed |
| he/she/it had collapsed |
| we had collapsed |
| you all had collapsed |
| they had collapsed |
|
| I had been collapsing |
| you had been collapsing |
| he/she/it had been collapsing |
| we had been collapsing |
| you all had been collapsing |
| they had been collapsing |
|
| Future |
| I will collapse |
| you will collapse |
| he/she/it will collapse |
| we will collapse |
| you all will collapse |
| they will collapse |
|
| I will be collapsing |
| you will be collapsing |
| he/she/it will be collapsing |
| we are collapsing |
| you all will be collapsing |
| they will be collapsing |
|
| I will have collapsed |
| you will have collapsed |
| he/she/it will have collapsed |
| we will have collapsed |
| you all will have collapsed |
| they will have collapsed |
|
| I will have been collapsing |
| you will have been collapsing |
| he/she/it will have been collapsing |
| we will have been collapsing |
| you all will have been collapsing |
| they will have been collapsing |
|
