Infinitive: to keep sth up
Participle: kept sth up
Gerund: keeping sth up
| I | keep sth up |
| you | keep sth up |
| he;she;it | keeps sth up |
| we | keep sth up |
| you | keep sth up |
| they | keep sth up |
| I | have kept sth up |
| you | have kept sth up |
| he;she;it | has kept sth up |
| we | have kept sth up |
| you | have kept sth up |
| they | have kept sth up |
| I | kept sth up |
| you | kept sth up |
| he;she;it | kept sth up |
| we | kept sth up |
| you | kept sth up |
| they | kept sth up |
| I | had kept sth up |
| you | had kept sth up |
| he;she;it | had kept sth up |
| we | had kept sth up |
| you | had kept sth up |
| they | had kept sth up |
| I | will keep sth up |
| you | will keep sth up |
| he;she;it | will keep sth up |
| we | will keep sth up |
| you | will keep sth up |
| they | will keep sth up |
| I | will have kept sth up |
| you | will have kept sth up |
| he;she;it | will have kept sth up |
| we | will have kept sth up |
| you | will have kept sth up |
| they | will have kept sth up |
| I | keep sth up |
| you | keep sth up |
| he;she;it | keep sth up |
| we | keep sth up |
| you | keep sth up |
| they | keep sth up |
| I | have kept sth up |
| you | have kept sth up |
| he;she;it | have kept sth up |
| we | have kept sth up |
| you | have kept sth up |
| they | have kept sth up |
| I | kept sth up |
| you | kept sth up |
| he;she;it | kept sth up |
| we | kept sth up |
| you | kept sth up |
| they | kept sth up |
| I | had kept sth up |
| you | had kept sth up |
| he;she;it | had kept sth up |
| we | had kept sth up |
| you | had kept sth up |
| they | had kept sth up |
| I | would keep sth up |
| you | would keep sth up |
| he;she;it | would keep sth up |
| we | would keep sth up |
| you | would keep sth up |
| they | would keep sth up |
| I | would have kept sth up |
| you | would have kept sth up |
| he;she;it | would have kept sth up |
| we | would have kept sth up |
| you | would have kept sth up |
| they | would have kept sth up |
| you | keep sth up |
| we | Let's keep sth up |
| you | keep sth up |
| I | am keeping sth up |
| you | are keeping sth up |
| he;she;it | is keeping sth up |
| we | are keeping sth up |
| you | are keeping sth up |
| they | are keeping sth up |
| I | have been keeping sth up |
| you | have been keeping sth up |
| he;she;it | has been keeping sth up |
| we | have been keeping sth up |
| you | have been keeping sth up |
| they | have been keeping sth up |
| I | was keeping sth up |
| you | were keeping sth up |
| he;she;it | was keeping sth up |
| we | were keeping sth up |
| you | were keeping sth up |
| they | were keeping sth up |
| I | had been keeping sth up |
| you | had been keeping sth up |
| he;she;it | had been keeping sth up |
| we | had been keeping sth up |
| you | had been keeping sth up |
| they | had been keeping sth up |
| I | will be keeping sth up |
| you | will be keeping sth up |
| he;she;it | will be keeping sth up |
| we | will be keeping sth up |
| you | will be keeping sth up |
| they | will be keeping sth up |
| I | will have been keeping sth up |
| you | will have been keeping sth up |
| he;she;it | will have been keeping sth up |
| we | will have been keeping sth up |
| you | will have been keeping sth up |
| they | will have been keeping sth up |
| I | would be keeping sth up |
| you | would be keeping sth up |
| he;she;it | would be keeping sth up |
| we | would be keeping sth up |
| you | would be keeping sth up |
| they | would be keeping sth up |
| I | would have been keeping sth up |
| you | would have been keeping sth up |
| he;she;it | would have been keeping sth up |
| we | would have been keeping sth up |
| you | would have been keeping sth up |
| they | would have been keeping sth 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.