| INDICATIVE |  | 
| Present |  | 
| I cooperate You cooperate
 He/She/It cooperates
 We cooperate
 You cooperate
 They cooperate
 
 |  | 
| Imperfect |  | 
| I was cooperating You were cooperating
 He/She/It was cooperating
 We were cooperating
 You were cooperating
 They were cooperating
 
 |  | 
| Perfect |  | 
| I cooperated You cooperated
 He/She/It cooperated
 We cooperated
 You cooperated
 They cooperated
 
 |  | 
| Perfect |  | 
| I have cooperated You have cooperated
 He/She/It has cooperated
 We have cooperated
 You have cooperated
 They have cooperated
 
 |  | 
| PlusPerfect |  | 
| I had cooperated You had cooperated
 He/She/It had cooperated
 We had cooperated
 You had cooperated
 They had cooperated
 
 |  | 
| Plusperfect |  | 
| I had cooperated You had cooperated
 He/She/It had cooperated
 We had cooperated
 You had cooperated
 They had cooperated
 
 |  | 
| Future |  | 
| I will cooperate You will cooperate
 He/She/It will cooperate
 We will cooperate
 You will cooperate
 They will cooperate
 
 |  | 
| Future perfect |  | 
| I will have cooperated You will have cooperated
 He/She/It will have cooperated
 We will have cooperated
 You will have cooperated
 They will have cooperated
 
 |  | 
| SUBJUNTIVE |  | 
| Present |  | 
| I (that )may cooperate You (that )may cooperate
 He/She/It (that )may cooperate
 We (that )may cooperate
 You (that )may cooperate
 They (that )may cooperate
 
 |  | 
| Imperfect |  | 
| I (that )might cooperate You (that )might cooperate
 He/She/It (that )might cooperate
 We (that )might cooperate
 You (that )might cooperate
 They (that )might cooperate
 
 |  | 
| Perfect |  | 
| I (whether) cooperated You (whether) cooperated
 He/She/It (whether) cooperated
 We (whether) cooperated
 You (whether) cooperated
 They (whether) cooperated
 
 |  | 
| Pluperfect |  | 
| I (whether) had cooperated You (whether) had cooperated
 He/She/It (whether) had cooperated
 We (whether) had cooperated
 You (whether) had cooperated
 They (whether) had cooperated
 
 |  | 
| CONDITIONAL |  | 
| Present |  | 
| I would cooperate You would cooperate
 He/She/It would cooperate
 We would cooperate
 You would cooperate
 They would cooperate
 
 |  | 
| Perfect |  | 
| I would have cooperated You would have cooperated
 He/She/It would have cooperated
 We would have cooperated
 You would have cooperated
 They would have cooperated
 
 |  | 
| IMPERATIVE |  | 
| Present |  | 
| let me cooperate cooperate
 let him cooperate
 let us cooperate
 cooperate
 let them cooperate
 
 |  | 
| PARTICIPLE |  | 
| Present |  | 
| cooperating 
 |  | 
| Perfect |  | 
| cooperated 
 |  | 
| INFINITIVE |  | 
| Present |  | 
| to cooperate 
 |  | 
| Perfect |  | 
| have cooperated 
 |  | 
| GERUND |  | 
| Present |  | 
| cooperating 
 |  | 
| Perfect |  | 
| having cooperated 
 |  |