| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | doubt | doubt | doubts | doubt | doubt | doubt |
| Present continuous | am doubting | are doubting | is doubting | are doubting | are doubting | are doubting |
| Simple past | doubted | doubted | doubted | doubted | doubted | doubted |
| Past continuous | was doubting | were doubting | was doubting | were doubting | were doubting | were doubting |
| Simple future | will doubt | will doubt | will doubt | will doubt | will doubt | will doubt |
| Future continuous | will be doubting | will be doubting | will be doubting | will be doubting | will be doubting | will be doubting |
| Present perfect | have doubted | have doubted | has doubted | have doubted | have doubted | have doubted |
| Present perfect continuous | have been doubting | have been doubting | has been doubting | have been doubting | have been doubting | have been doubting |
| Past perfect | had doubted | had doubted | had doubted | had doubted | had doubted | had doubted |
| Past perfect continuous | had been doubting | had been doubting | had been doubting | had been doubting | had been doubting | had been doubting |
| Future perfect | will have doubted | will have doubted | will have doubted | will have doubted | will have doubted | will have doubted |
| Future perfect continuous | will have been doubting | will have been doubting | will have been doubting | will have been doubting | will have been doubting | will have been doubting |
| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | don't doubt | don't doubt | doesn't doubt | don't doubt | don't doubt | don't doubt |
| Present continuous | am not doubting | are not doubting | is not doubting | are not doubting | are not doubting | are not doubting |
| Simple past | didn't doubt | didn't doubt | didn't doubt | didn't doubt | didn't doubt | didn't doubt |
| Past continuous | was not doubting | were not doubting | was not doubting | were not doubting | were not doubting | were not doubting |
| Simple future | won't doubt | won't doubt | won't doubt | won't doubt | won't doubt | won't doubt |
| Future continuous | will not be doubting | will not be doubting | will not be doubting | will not be doubting | will not be doubting | will not be doubting |
| Present perfect | have not doubted | have not doubted | has not doubted | have not doubted | have not doubted | have not doubted |
| Present perfect continuous | have not been doubting | have not been doubting | has not been doubting | have not been doubting | have not been doubting | have not been doubting |
| Past perfect | had not doubted | had not doubted | had not doubted | had not doubted | had not doubted | had not doubted |
| Past perfect continuous | had not been doubting | had not been doubting | had not been doubting | had not been doubting | had not been doubting | had not been doubting |
| Future perfect | will not have doubted | will not have doubted | will not have doubted | will not have doubted | will not have doubted | will not have doubted |
| Future perfect continuous | will not have been doubting | will not have been doubting | will not have been doubting | will not have been doubting | will not have been doubting | will not have been doubting |