Partikel が (ga)

Subject marker

Structure

Subjek + が + Predikat

Explanation

Unlike は which marks the old topic, が is used to mark new information (subject), or is used specifically with adjectives indicating like/dislike, skillful/unskillful, exist/not exist.

Examples

雨が降っています。

Ame ga futte imasu.

It's raining. (new fact)

私は猫が好きです。

Watashi wa neko ga suki desu.

I (topic) like cats (specific subject).