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