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