| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | silt up | silt up | silts up | silt up | silt up | silt up |
| Present continuous | am silting up | are silting up | is silting up | are silting up | are silting up | are silting up |
| Simple past | silted up | silted up | silted up | silted up | silted up | silted up |
| Past continuous | was silting up | were silting up | was silting up | were silting up | were silting up | were silting up |
| Simple future | will silt up | will silt up | will silt up | will silt up | will silt up | will silt up |
| Future continuous | will be silting up | will be silting up | will be silting up | will be silting up | will be silting up | will be silting up |
| Present perfect | have silted up | have silted up | has silted up | have silted up | have silted up | have silted up |
| Present perfect continuous | have been silting up | have been silting up | has been silting up | have been silting up | have been silting up | have been silting up |
| Present continuous | am silting up | are silting up | is silting up | are silting up | are silting up | are silting up |
| Past perfect | had silted up | had silted up | had silted up | had silted up | had silted up | had silted up |
| Past perfect continuous | had been silting up | had been silting up | had been silting up | had been silting up | had been silting up | had been silting up |
| Future perfect | will have silted up | will have silted up | will have silted up | will have silted up | will have silted up | will have silted up |
| Future perfect continuous | will have been silting up | will have been silting up | will have been silting up | will have been silting up | will have been silting up | will have been silting up |
| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | don't silt up | don't silt up | doesn't silt up | don't silt up | don't silt up | don't silt up |
| Present continuous | am not silting up | are not silting up | is not silting up | are not silting up | are not silting up | are not silting up |
| Simple past | didn't silt up | didn't silt up | didn't silt up | didn't silt up | didn't silt up | didn't silt up |
| Past continuous | was not silting up | were not silting up | was not silting up | were not silting up | were not silting up | were not silting up |
| Simple future | won't silt up | won't silt up | won't silt up | won't silt up | won't silt up | won't silt up |
| Future continuous | will not be silting up | will not be silting up | will not be silting up | will not be silting up | will not be silting up | will not be silting up |
| Present perfect | have not silted up | have not silted up | has not silted up | have not silted up | have not silted up | have not silted up |
| Present perfect continuous | have not been silting up | have not been silting up | has not been silting up | have not been silting up | have not been silting up | have not been silting up |
| Present continuous | am not silting up | are not silting up | is not silting up | are not silting up | are not silting up | are not silting up |
| Past perfect | had not silted up | had not silted up | had not silted up | had not silted up | had not silted up | had not silted up |
| Past perfect continuous | had not been silting up | had not been silting up | had not been silting up | had not been silting up | had not been silting up | had not been silting up |
| Future perfect | will have not silted up | will have not silted up | will have not silted up | will have not silted up | will have not silted up | will have not silted up |
| Future perfect continuous | will have not been silting up | will have not been silting up | will have not been silting up | will have not been silting up | will have not been silting up | will have not been silting up |