| Simple | Progressive | Perfect | Progressive |
| Present |
| I caffeinate |
| you caffeinate |
| he/she/it caffeinates |
| we caffeinate |
| you all caffeinate |
| they caffeinate |
|
| I am caffeinating |
| you are caffeinating |
| he/she/it is caffeinating |
| we are caffeinating |
| you all are caffeinating |
| they are caffeinating |
|
| I have caffeinated |
| you have caffeinated |
| he/she/it has caffeinated |
| we have caffeinated |
| you all have caffeinated |
| they have caffeinated |
|
| I have been caffeinating |
| you have been caffeinating |
| he/she/it has been caffeinating |
| we have been caffeinating |
| you all have been caffeinating |
| they have been caffeinating |
|
| Past |
| I caffeinated |
| you caffeinated |
| he/she/it caffeinated |
| we caffeinated |
| you all caffeinated |
| they caffeinated |
|
| I was caffeinating |
| you were caffeinating |
| he/she/it was caffeinating |
| we were caffeinating |
| you all were caffeinating |
| they were caffeinating |
|
| I had caffeinated |
| you had caffeinated |
| he/she/it had caffeinated |
| we had caffeinated |
| you all had caffeinated |
| they had caffeinated |
|
| I had been caffeinating |
| you had been caffeinating |
| he/she/it had been caffeinating |
| we had been caffeinating |
| you all had been caffeinating |
| they had been caffeinating |
|
| Future |
| I will caffeinate |
| you will caffeinate |
| he/she/it will caffeinate |
| we will caffeinate |
| you all will caffeinate |
| they will caffeinate |
|
| I will be caffeinating |
| you will be caffeinating |
| he/she/it will be caffeinating |
| we are caffeinating |
| you all will be caffeinating |
| they will be caffeinating |
|
| I will have caffeinated |
| you will have caffeinated |
| he/she/it will have caffeinated |
| we will have caffeinated |
| you all will have caffeinated |
| they will have caffeinated |
|
| I will have been caffeinating |
| you will have been caffeinating |
| he/she/it will have been caffeinating |
| we will have been caffeinating |
| you all will have been caffeinating |
| they will have been caffeinating |
|
