| I | fatten up |
| you | fatten up |
| he/she/it | fattens up |
| we | fatten up |
| you | fatten up |
| they | fatten up |
| I | have fattened up |
| you | have fattened up |
| he/she/it | has fattened up |
| we | have fattened up |
| you | have fattened up |
| they | have fattened up |
| I | fattened up |
| you | fattened up |
| he/she/it | fattened up |
| we | fattened up |
| you | fattened up |
| they | fattened up |
| I | had fattened up |
| you | had fattened up |
| he/she/it | had fattened up |
| we | had fattened up |
| you | had fattened up |
| they | had fattened up |
| I | will fatten up |
| you | will fatten up |
| he/she/it | will fatten up |
| we | will fatten up |
| you | will fatten up |
| they | will fatten up |
| I | will have fattened up |
| you | will have fattened up |
| he/she/it | will have fattened up |
| we | will have fattened up |
| you | will have fattened up |
| they | will have fattened up |
| I | am fattening up |
| you | are fattening up |
| he/she/it | is fattening up |
| we | are fattening up |
| you | are fattening up |
| they | are fattening up |
| I | have been fattening up |
| you | have been fattening up |
| he/she/it | has been fattening up |
| we | have been fattening up |
| you | have been fattening up |
| they | have been fattening up |
| I | was fattening up |
| you | were fattening up |
| he/she/it | was fattening up |
| we | were fattening up |
| you | were fattening up |
| they | were fattening up |
| I | had been fattening up |
| you | had been fattening up |
| he/she/it | had been fattening up |
| we | had been fattening up |
| you | had been fattening up |
| they | had been fattening up |
| I | will be fattening up |
| you | will be fattening up |
| he/she/it | will be fattening up |
| we | will be fattening up |
| you | will be fattening up |
| they | will be fattening up |
| I | will have been fattening up |
| you | will have been fattening up |
| he/she/it | will have been fattening up |
| we | will have been fattening up |
| you | will have been fattening up |
| they | will have been fattening up |
| I | would fatten up |
| you | would fatten up |
| he/she/it | would fatten up |
| we | would fatten up |
| you | would fatten up |
| they | would fatten up |
| I | would have fattened up |
| you | would have fattened up |
| he/she/it | would have fattened up |
| we | would have fattened up |
| you | would have fattened up |
| they | would have fattened up |
| I | would be fattening up |
| you | would be fattening up |
| he/she/it | would be fattening up |
| we | would be fattening up |
| you | would be fattening up |
| they | would be fattening up |
| I | would have been fattening up |
| you | would have been fattening up |
| he/she/it | would have been fattening up |
| we | would have been fattening up |
| you | would have been fattening up |
| they | would have been fattening up |
| You | fatten up |
| we | Let's fatten up |
| You | fatten up |