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