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