Third-person singular simple present indicative form of chalk up

simple past tense and past participle of chalk up

simple past tense and past participle of call up

Third-person singular simple present indicative form of ramp up

present participle of ramp up

simple past tense and past participle of ramp up

Third-person singular simple present indicative form of crank up

Third-person singular simple present indicative form of crop up

simple past tense and past participle of crop up

(Britain) To fasten one's seat belt. / (Britain, colloquial, derogatory, usually in imperative) To stop talking or chattering; shut up.