Returning objects with 返す

Use 返す when giving an object back to its owner or a place such as a library.

The idea

返す is a transitive godan verb. Mark the object with を and the recipient or destination with に. Its polite stem is 返し; the て form is 返して.

Patterns to compare
Dictionary form	Polite non-past	Polite negative	Polite past	て form
返す	返します	返しません	返しました	返して

私わたしは友達ともだちに本ほんを返かえします。I will return the book to my friend.
明日あした、図書館としょかんに本ほんを返かえします。Tomorrow I will return the book to the library.
昨日きのう、先生せんせいに辞書じしょを返かえしました。Yesterday I returned the dictionary to my teacher.
まだ傘かさを返かえしていません。I have not returned the umbrella yet.
借かりたペンを返かえしてください。Please return the pen you borrowed.
弟おとうとはゲームを返かえしてから、帰かえりました。My younger brother went home after returning the game.

Read-aloud uses a synthetic Japanese voice available on your device. Voice quality and availability vary; it does not assess your pronunciation.

Do not confuse 返す, returning something, with 帰る, going home. Both are read かえる in their dictionary forms, but their meanings and conjugations differ.

Write the polite non-past form: ＿。（返かえす→ます）
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返します
返します is the polite non-past form; it can describe a present or future return.
Write the て form: ＿。（返かえす→て）
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返して
返して is the て form: the final す changes to して.
Choose the particle: 友達ともだち＿本ほんを返かえします。（に／を）
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に
に marks the friend as the person receiving the book back.

Say what you will return and to whom, then change your sentence to the polite past.