【留める（staple）】Learn Japanese Conjugation#japaneselanguage #jlpt #japaneselesson #nihongo

雨が降りそうだから、傘を持っていこう。

It looks like it's going to rain, so let's take an umbrella.

1. 雨が降りそうit looks like it will rain降る (to fall) becomes 降り + そう: something that looks about to happen.
2. だからso, because of thatGives the reason for what comes next.
3. 傘を持っていこうlet's take an umbrella持っていく (take along) in its volitional form 〜こう: “let's” or “I'll”.