| Simple | Progressive | Perfect | Progressive |
| Present |
| I alternate |
| you alternate |
| he/she/it alternates |
| we alternate |
| you all alternate |
| they alternate |
|
| I am alternating |
| you are alternating |
| he/she/it is alternating |
| we are alternating |
| you all are alternating |
| they are alternating |
|
| I have alternated |
| you have alternated |
| he/she/it has alternated |
| we have alternated |
| you all have alternated |
| they have alternated |
|
| I have been alternating |
| you have been alternating |
| he/she/it has been alternating |
| we have been alternating |
| you all have been alternating |
| they have been alternating |
|
| Past |
| I alternated |
| you alternated |
| he/she/it alternated |
| we alternated |
| you all alternated |
| they alternated |
|
| I was alternating |
| you were alternating |
| he/she/it was alternating |
| we were alternating |
| you all were alternating |
| they were alternating |
|
| I had alternated |
| you had alternated |
| he/she/it had alternated |
| we had alternated |
| you all had alternated |
| they had alternated |
|
| I had been alternating |
| you had been alternating |
| he/she/it had been alternating |
| we had been alternating |
| you all had been alternating |
| they had been alternating |
|
| Future |
| I will alternate |
| you will alternate |
| he/she/it will alternate |
| we will alternate |
| you all will alternate |
| they will alternate |
|
| I will be alternating |
| you will be alternating |
| he/she/it will be alternating |
| we are alternating |
| you all will be alternating |
| they will be alternating |
|
| I will have alternated |
| you will have alternated |
| he/she/it will have alternated |
| we will have alternated |
| you all will have alternated |
| they will have alternated |
|
| I will have been alternating |
| you will have been alternating |
| he/she/it will have been alternating |
| we will have been alternating |
| you all will have been alternating |
| they will have been alternating |
|
