| Present | Past | Future | |
|---|---|---|---|
| I | doubt | doubted | will doubt |
| you | doubt | doubted | will doubt |
| he/she | doubts | doubted | will doubt |
| we | doubt | doubted | will doubt |
| you | doubt | doubted | will doubt |
| they | doubt | doubted | will doubt |
| I | doubt |
| you | doubt |
| he/she | doubts |
| we | doubt |
| you | doubt |
| they | doubt |
| I | doubted |
| you | doubted |
| he/she | doubted |
| we | doubted |
| you | doubted |
| they | doubted |
| I | will doubt |
| you | will doubt |
| he/she | will doubt |
| we | will doubt |
| you | will doubt |
| they | will doubt |
| Present | Past | Future | |
|---|---|---|---|
| I | have doubted | had doubted | will have doubted |
| you | have doubted | had doubted | will have doubted |
| he/she | has doubted | had doubted | will have doubted |
| we | have doubted | had doubted | will have doubted |
| you | have doubted | had doubted | will have doubted |
| they | have doubted | had doubted | will have doubted |
| I | have doubted |
| you | have doubted |
| he/she | has doubted |
| we | have doubted |
| you | have doubted |
| they | have doubted |
| I | had doubted |
| you | had doubted |
| he/she | had doubted |
| we | had doubted |
| you | had doubted |
| they | had doubted |
| I | will have doubted |
| you | will have doubted |
| he/she | will have doubted |
| we | will have doubted |
| you | will have doubted |
| they | will have doubted |
| Imperative | |
|---|---|
| I | - |
| you | doubt |
| he/she | - |
| we | - |
| you | doubt |
| they | - |
| I | - |
| you | doubt |
| he/she | - |
| we | - |
| you | doubt |
| they | - |
| Present | Past | Future | |
|---|---|---|---|
| I | am doubting | was doubting | will be doubting |
| you | are doubting | were doubting | will be doubting |
| he/she | is doubting | was doubting | will be doubting |
| we | are doubting | were doubting | will be doubting |
| you | are doubting | were doubting | will be doubting |
| they | are doubting | were doubting | will be doubting |
| I | am doubting |
| you | are doubting |
| he/she | is doubting |
| we | are doubting |
| you | are doubting |
| they | are doubting |
| I | was doubting |
| you | were doubting |
| he/she | was doubting |
| we | were doubting |
| you | were doubting |
| they | were doubting |
| I | will be doubting |
| you | will be doubting |
| he/she | will be doubting |
| we | will be doubting |
| you | will be doubting |
| they | will be doubting |
| Present | Past | Future | |
|---|---|---|---|
| I | have been doubting | had been doubting | will have been doubting |
| you | have been doubting | had been doubting | will have been doubting |
| he/she | has been doubting | had been doubting | will have been doubting |
| we | have been doubting | had been doubting | will have been doubting |
| you | have been doubting | had been doubting | will have been doubting |
| they | have been doubting | had been doubting | will have been doubting |
| I | have been doubting |
| you | have been doubting |
| he/she | has been doubting |
| we | have been doubting |
| you | have been doubting |
| they | have been doubting |
| I | had been doubting |
| you | had been doubting |
| he/she | had been doubting |
| we | had been doubting |
| you | had been doubting |
| they | had been doubting |
| I | will have been doubting |
| you | will have been doubting |
| he/she | will have been doubting |
| we | will have been doubting |
| you | will have been doubting |
| they | will have been doubting |