make sure to

必ず〜するようにする

make sure to の類語

be sure to, be certain to, don't forget to, definitely will, check, see, be bound to, see to it that, get at, decide, ensure, confirm, make a point, make certain, assure, play safe, guard against, insure, nail down, fix, reassure, ascertain, secure, determine, find out, establish, settle, clear up, anchor, sort out, satisfy, take steps, save, protect, clinch, forearm, chain, prepare, tie, certify, guarantee, provide for, cinch, reef, hedge, moor, fasten, tether, clear the decks, belay, leave no stone unturned, batten

make sure to の言い換えを探すには

make sure to（必ず〜するようにする）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。