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