Grammatical pattern: VERB + WH-word/whether/if + CLAUSE
The verbs in the list below follow this pattern.
announce, ascertain, ask, care, check, comprehend, consider, decide, demonstrate, determine, divine, estimate, explain, foresee, forget, get, guess, hate, hear, imagine, know, learn, like, mean, mind, pay, predict, realize, recall, remember, say, see, sense, specify, speculate, stipulate, suggest, tell, think, wonder
See also the full discussion of the pattern VERB + WH-word/whether/if + CLAUSE.