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