| Simple | Progressive | Perfect | Progressive |
| Present |
| I endeavor |
| you endeavor |
| he/she/it endeavors |
| we endeavor |
| you all endeavor |
| they endeavor |
|
| I am endeavoring |
| you are endeavoring |
| he/she/it is endeavoring |
| we are endeavoring |
| you all are endeavoring |
| they are endeavoring |
|
| I have endeavored |
| you have endeavored |
| he/she/it has endeavored |
| we have endeavored |
| you all have endeavored |
| they have endeavored |
|
| I have been endeavoring |
| you have been endeavoring |
| he/she/it has been endeavoring |
| we have been endeavoring |
| you all have been endeavoring |
| they have been endeavoring |
|
| Past |
| I endeavored |
| you endeavored |
| he/she/it endeavored |
| we endeavored |
| you all endeavored |
| they endeavored |
|
| I was endeavoring |
| you were endeavoring |
| he/she/it was endeavoring |
| we were endeavoring |
| you all were endeavoring |
| they were endeavoring |
|
| I had endeavored |
| you had endeavored |
| he/she/it had endeavored |
| we had endeavored |
| you all had endeavored |
| they had endeavored |
|
| I had been endeavoring |
| you had been endeavoring |
| he/she/it had been endeavoring |
| we had been endeavoring |
| you all had been endeavoring |
| they had been endeavoring |
|
| Future |
| I will endeavor |
| you will endeavor |
| he/she/it will endeavor |
| we will endeavor |
| you all will endeavor |
| they will endeavor |
|
| I will be endeavoring |
| you will be endeavoring |
| he/she/it will be endeavoring |
| we are endeavoring |
| you all will be endeavoring |
| they will be endeavoring |
|
| I will have endeavored |
| you will have endeavored |
| he/she/it will have endeavored |
| we will have endeavored |
| you all will have endeavored |
| they will have endeavored |
|
| I will have been endeavoring |
| you will have been endeavoring |
| he/she/it will have been endeavoring |
| we will have been endeavoring |
| you all will have been endeavoring |
| they will have been endeavoring |
|
