Infinitive: to keep sb up
Participle: kept sb up
Gerund: keeping sb up
| I | keep sb up |
| you | keep sb up |
| he;she;it | keeps sb up |
| we | keep sb up |
| you | keep sb up |
| they | keep sb up |
| I | have kept sb up |
| you | have kept sb up |
| he;she;it | has kept sb up |
| we | have kept sb up |
| you | have kept sb up |
| they | have kept sb up |
| I | kept sb up |
| you | kept sb up |
| he;she;it | kept sb up |
| we | kept sb up |
| you | kept sb up |
| they | kept sb up |
| I | had kept sb up |
| you | had kept sb up |
| he;she;it | had kept sb up |
| we | had kept sb up |
| you | had kept sb up |
| they | had kept sb up |
| I | will keep sb up |
| you | will keep sb up |
| he;she;it | will keep sb up |
| we | will keep sb up |
| you | will keep sb up |
| they | will keep sb up |
| I | will have kept sb up |
| you | will have kept sb up |
| he;she;it | will have kept sb up |
| we | will have kept sb up |
| you | will have kept sb up |
| they | will have kept sb up |
| I | keep sb up |
| you | keep sb up |
| he;she;it | keep sb up |
| we | keep sb up |
| you | keep sb up |
| they | keep sb up |
| I | have kept sb up |
| you | have kept sb up |
| he;she;it | have kept sb up |
| we | have kept sb up |
| you | have kept sb up |
| they | have kept sb up |
| I | kept sb up |
| you | kept sb up |
| he;she;it | kept sb up |
| we | kept sb up |
| you | kept sb up |
| they | kept sb up |
| I | had kept sb up |
| you | had kept sb up |
| he;she;it | had kept sb up |
| we | had kept sb up |
| you | had kept sb up |
| they | had kept sb up |
| I | would keep sb up |
| you | would keep sb up |
| he;she;it | would keep sb up |
| we | would keep sb up |
| you | would keep sb up |
| they | would keep sb up |
| I | would have kept sb up |
| you | would have kept sb up |
| he;she;it | would have kept sb up |
| we | would have kept sb up |
| you | would have kept sb up |
| they | would have kept sb up |
| you | keep sb up |
| we | Let's keep sb up |
| you | keep sb up |
| I | am keeping sb up |
| you | are keeping sb up |
| he;she;it | is keeping sb up |
| we | are keeping sb up |
| you | are keeping sb up |
| they | are keeping sb up |
| I | have been keeping sb up |
| you | have been keeping sb up |
| he;she;it | has been keeping sb up |
| we | have been keeping sb up |
| you | have been keeping sb up |
| they | have been keeping sb up |
| I | was keeping sb up |
| you | were keeping sb up |
| he;she;it | was keeping sb up |
| we | were keeping sb up |
| you | were keeping sb up |
| they | were keeping sb up |
| I | had been keeping sb up |
| you | had been keeping sb up |
| he;she;it | had been keeping sb up |
| we | had been keeping sb up |
| you | had been keeping sb up |
| they | had been keeping sb up |
| I | will be keeping sb up |
| you | will be keeping sb up |
| he;she;it | will be keeping sb up |
| we | will be keeping sb up |
| you | will be keeping sb up |
| they | will be keeping sb up |
| I | will have been keeping sb up |
| you | will have been keeping sb up |
| he;she;it | will have been keeping sb up |
| we | will have been keeping sb up |
| you | will have been keeping sb up |
| they | will have been keeping sb up |
| I | would be keeping sb up |
| you | would be keeping sb up |
| he;she;it | would be keeping sb up |
| we | would be keeping sb up |
| you | would be keeping sb up |
| they | would be keeping sb up |
| I | would have been keeping sb up |
| you | would have been keeping sb up |
| he;she;it | would have been keeping sb up |
| we | would have been keeping sb up |
| you | would have been keeping sb up |
| they | would have been keeping sb up |
"The word prob. belongs primarily to the vulgar and non-literary stratum of the language; but it comes up suddenly into literary use c.1000, and that in many senses, indicating considerable previous development." [OED]Meaning "financially support and privately control" (usually in ref. to mistresses) is from 1560. The noun meaning "innermost stronghold of a tower" is from 1586, perhaps a translation of It. tenazza, with a notion of "that which keeps" (someone or something); the sense of "food required to keep a person or animal" is attested from 1801. Keepsake is first recorded 1790, on model of namesake; thus an object kept for the sake of the giver. For keeps "completely, for good" is Amer.Eng. colloquial, from 1861. Keeper "one who has charge of some person or thing, warden" is from c.1300; sense of "one who carries on some business" is from c.1440.