| Simple | Progressive | Perfect | Progressive |
| Present |
| I extemporize |
| you extemporize |
| he/she/it extemporizes |
| we extemporize |
| you all extemporize |
| they extemporize |
|
| I am extemporizing |
| you are extemporizing |
| he/she/it is extemporizing |
| we are extemporizing |
| you all are extemporizing |
| they are extemporizing |
|
| I have extemporized |
| you have extemporized |
| he/she/it has extemporized |
| we have extemporized |
| you all have extemporized |
| they have extemporized |
|
| I have been extemporizing |
| you have been extemporizing |
| he/she/it has been extemporizing |
| we have been extemporizing |
| you all have been extemporizing |
| they have been extemporizing |
|
| Past |
| I extemporized |
| you extemporized |
| he/she/it extemporized |
| we extemporized |
| you all extemporized |
| they extemporized |
|
| I was extemporizing |
| you were extemporizing |
| he/she/it was extemporizing |
| we were extemporizing |
| you all were extemporizing |
| they were extemporizing |
|
| I had extemporized |
| you had extemporized |
| he/she/it had extemporized |
| we had extemporized |
| you all had extemporized |
| they had extemporized |
|
| I had been extemporizing |
| you had been extemporizing |
| he/she/it had been extemporizing |
| we had been extemporizing |
| you all had been extemporizing |
| they had been extemporizing |
|
| Future |
| I will extemporize |
| you will extemporize |
| he/she/it will extemporize |
| we will extemporize |
| you all will extemporize |
| they will extemporize |
|
| I will be extemporizing |
| you will be extemporizing |
| he/she/it will be extemporizing |
| we are extemporizing |
| you all will be extemporizing |
| they will be extemporizing |
|
| I will have extemporized |
| you will have extemporized |
| he/she/it will have extemporized |
| we will have extemporized |
| you all will have extemporized |
| they will have extemporized |
|
| I will have been extemporizing |
| you will have been extemporizing |
| he/she/it will have been extemporizing |
| we will have been extemporizing |
| you all will have been extemporizing |
| they will have been extemporizing |
|
