・fall into sleep 眠りに落ちる.

・The discussion turned [grew] into a quarrel. 議論は口論になった.

・burst into tears わっと泣き出す.

・burst into laughter どっと笑い出す.

・Suddenly he broke into a song. 突然彼は歌い始めた.

・The sad news drove him into despair. その悲報は彼を絶望のどん底に陥れた.

・harden something into a mass 物を(固めて)かたまりにする.

・harden into a mass (固まって)かたまりになる.

・cut [divide] something into two 物を二つに切る[分ける].

・I laughed him into good humor again. 私は笑ってまた彼を上機嫌にさせた.

・reason a person into compliance 人を説いて承知させる.