～ずつ

About

ずつ ("each/every/at a time") is a suffix that attaches to an amount of something and turns it into a rate or unit. ずつ can attach to numbers, counters, or ambiguous amounts like 少すこしい ("a little") and いくらか ("some").

E.g. 足あしは少すこしずつ良よくなっている。 "My foot is getting better, little by little."

E.g. 机つくえに本ほんが一冊いっさつずつ置おいてあった。 "There was one book placed on each desk."

Summary

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  ずつ is a suffix that means "each/every/at a time"

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  ずつ attaches to an amount

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  ずつ can attach to a number, counter, or ambiguous amount