| Present Tense | Past Tense | Future Tense |
|---|---|---|
| I collapse | I collapsed | I shall/will collapse |
| We collapse | We collapsed | We shall/will collapse |
| You collapse | You collapsed | You will collapse |
| He collapses | He collapsed | He will collapse |
| She collapses | She collapsed | She will collapse |
| It collapses | It collapsed | It will collapse |
| They collapse | They collapsed | They will collapse |
| Present Continuous | Past Continuous | Future Continuous |
|---|---|---|
| I am collapsing | I was collapsing | I shall/will be collapsing |
| We are collapsing | We were collapsing | We shall/will be collapsing |
| You are collapsing | You were collapsing | You will be collapsing |
| He is collapsing | He was collapsing | He will be collapsing |
| She is collapsing | She was collapsing | She will be collapsing |
| It is collapsing | It was collapsing | It will be collapsing |
| They are collapsing | They were collapsing | They will be collapsing |
| Present Perfect | Past Perfect | Future Perfect |
|---|---|---|
| I have collapsed | I had collapsed | I shall/will have collapsed |
| We have collapsed | We had collapsed | We shall/will have collapsed |
| You have collapsed | You had collapsed | You will have collapsed |
| He has collapsed | He had collapsed | He will have collapsed |
| She has collapsed | She had collapsed | She will have collapsed |
| It has collapsed | It had collapsed | It will have collapsed |
| They have collapsed | They had collapsed | They will have collapsed |
| Present Perfect Continuous | Past Perfect Continuous | Future Perfect Continuous |
|---|---|---|
| I have been collapsing | I had been collapsing | I shall/will have been collapsing |
| We have been collapsing | We had been collapsing | We shall/will have been collapsing |
| You have been collapsing | You had been collapsing | You will have been collapsing |
| He has been collapsing | He had been collapsing | He will have been collapsing |
| She has been collapsing | She had been collapsing | She will have been collapsing |
| It has been collapsing | It had been collapsing | It will have been collapsing |
| They have been collapsing | They had been collapsing | They will have been collapsing |