| Simple | Progressive | Perfect | Progressive |
| Present |
| I quack |
| you quack |
| he/she/it quacks |
| we quack |
| you all quack |
| they quack |
|
| I am quacking |
| you are quacking |
| he/she/it is quacking |
| we are quacking |
| you all are quacking |
| they are quacking |
|
| I have quacked |
| you have quacked |
| he/she/it has quacked |
| we have quacked |
| you all have quacked |
| they have quacked |
|
| I have been quacking |
| you have been quacking |
| he/she/it has been quacking |
| we have been quacking |
| you all have been quacking |
| they have been quacking |
|
| Past |
| I quacked |
| you quacked |
| he/she/it quacked |
| we quacked |
| you all quacked |
| they quacked |
|
| I was quacking |
| you were quacking |
| he/she/it was quacking |
| we were quacking |
| you all were quacking |
| they were quacking |
|
| I had quacked |
| you had quacked |
| he/she/it had quacked |
| we had quacked |
| you all had quacked |
| they had quacked |
|
| I had been quacking |
| you had been quacking |
| he/she/it had been quacking |
| we had been quacking |
| you all had been quacking |
| they had been quacking |
|
| Future |
| I will quack |
| you will quack |
| he/she/it will quack |
| we will quack |
| you all will quack |
| they will quack |
|
| I will be quacking |
| you will be quacking |
| he/she/it will be quacking |
| we are quacking |
| you all will be quacking |
| they will be quacking |
|
| I will have quacked |
| you will have quacked |
| he/she/it will have quacked |
| we will have quacked |
| you all will have quacked |
| they will have quacked |
|
| I will have been quacking |
| you will have been quacking |
| he/she/it will have been quacking |
| we will have been quacking |
| you all will have been quacking |
| they will have been quacking |
|
