“I'm” is a contraction of “I am”.

How to say ““I'm” is a contraction of “I am”.” in Japanese

In Japanese

「I'm」は「I am」の(「アイム」は「アイ アム」の)短縮形(たんしゅくけい)です。

「Aimu」wa「ai amu」no tanshukukei desu.

“I'm” is a contraction of “I am”. in other languages