使っ

使っ

The word "使っ" is the te-form of "使う" (tsukau), which means "to use."

Here, "使っています" stems from "使っ", which is the conjugated form of the verb "使う" (to use), indicating someone is actively using something.

彼は新しいプログラムを使っています。

He is using a new program.

In this instance, "使って" represents the te-form of the verb, commonly used to connect actions or to indicate the means by which something is achieved.

その道具を使って問題を解決しました。

Using that tool, I solved the problem.

Here, "使う" appears in its base, dictionary form, denoting a general act of using something, in this case, the Japanese language.

彼女は日本語を使う仕事を探しています。

She is looking for a job that uses Japanese.