| Simple | Progressive | Perfect | Progressive |
| Present |
| I sum |
| you sum |
| he/she/it sums |
| we sum |
| you all sum |
| they sum |
|
| I am summing |
| you are summing |
| he/she/it is summing |
| we are summing |
| you all are summing |
| they are summing |
|
| I have summed |
| you have summed |
| he/she/it has summed |
| we have summed |
| you all have summed |
| they have summed |
|
| I have been summing |
| you have been summing |
| he/she/it has been summing |
| we have been summing |
| you all have been summing |
| they have been summing |
|
| Past |
| I summed |
| you summed |
| he/she/it summed |
| we summed |
| you all summed |
| they summed |
|
| I was summing |
| you were summing |
| he/she/it was summing |
| we were summing |
| you all were summing |
| they were summing |
|
| I had summed |
| you had summed |
| he/she/it had summed |
| we had summed |
| you all had summed |
| they had summed |
|
| I had been summing |
| you had been summing |
| he/she/it had been summing |
| we had been summing |
| you all had been summing |
| they had been summing |
|
| Future |
| I will sum |
| you will sum |
| he/she/it will sum |
| we will sum |
| you all will sum |
| they will sum |
|
| I will be summing |
| you will be summing |
| he/she/it will be summing |
| we are summing |
| you all will be summing |
| they will be summing |
|
| I will have summed |
| you will have summed |
| he/she/it will have summed |
| we will have summed |
| you all will have summed |
| they will have summed |
|
| I will have been summing |
| you will have been summing |
| he/she/it will have been summing |
| we will have been summing |
| you all will have been summing |
| they will have been summing |
|
