A verb in which the past tense is not formed by adding the usual -ed ending. Examples of irregular verbs are sing (past tense sang); feel (felt); and go (went). (Compare regular verb.)
A verb in which the past tense is not formed by adding the usual -ed ending. Examples of irregular verbs are sing (past tense sang); feel (felt); and go (went). (Compare regular verb.)
I think 19 should be A or E, both sound correct. But you have to consider whether the sentence is in present or past tense. Past tense would be A. 20 is E.
