のりかえる
to transfer (trains)
乗り換えることが大切です。
It is important to transfer (trains).
Memorize this verb with a full example sentence rather than just the dictionary form. Check if there's a transitive/intransitive pair — learning both together is very efficient. A fundamental N5 word — you'll use this in almost every conversation.
From the JLP Quiz question bank — the word in the form it is actually tested in.
「乗り換える」の意味はどれですか？
Answer: 乗っていた交通手段を別のものに変えること
