| singular | plural |
| Infinitive | | |
| intensify | |
| present simple | | |
| 1 | I intensify | we intensify |
| 2 | you intensify | you intensify |
| 3 | he/she/it intensifies | they intensify |
| past simple | | |
| 1 | I intensified | we intensified |
| 2 | you intensified | you intensified |
| 3 | he/she/it intensified | they intensified |
| future simple | | |
| 1 | I will/shall intensify | we will/shall intensify |
| 2 | you will/shall intensify | you will/shall intensify |
| 3 | he/she/it will/shall intensify | they will/shall intensify |
| conditional simple | | |
| 1 | I would intensify | we would intensify |
| 2 | you would intensify | you would intensify |
| 3 | he/she/it would intensify | they would intensify |
| present continuous | | |
| 1 | I am intensifying | we are intensifying |
| 2 | you are intensifying | you are intensifying |
| 3 | he/she/it is intensifying | they are intensifying |
| past continuous | | |
| 1 | I was intensifying | we were intensifying |
| 2 | you were intensifying | you were intensifying |
| 3 | he/she/it was intensifying | they were intensifying |
| future continuous | | |
| 1 | I will be intensifying | we will be intensifying |
| 2 | you will be intensifying | you will be intensifying |
| 3 | he/she/it will be intensifying | they will be intensifying |
| conditional continuous | | |
| 1 | I would be intensifying | we would be intensifying |
| 2 | you would be intensifying | you would be intensifying |
| 3 | he/she/it would be intensifying | they would be intensifying |
| present perfect | | |
| 1 | I have intensified | we have intensified |
| 2 | you have intensified | you have intensified |
| 3 | he/she/it has intensified | they have intensified |
| past perfect | | |
| 1 | I had intensified | we had intensified |
| 2 | you had intensified | you had intensified |
| 3 | he/she/it had intensified | they had intensified |
| future perfect | | |
| 1 | I will have intensified | we will have intensified |
| 2 | you will have intensified | you will have intensified |
| 3 | he/she/it will have intensified | they will have intensified |
| conditional perfect | | |
| 1 | I would have intensified | we would have intensified |
| 2 | you would have intensified | you would have intensified |
| 3 | he/she/it would have intensified | they would have intensified |
