if you’re free
暇なら、ちょっとこれ見てよ。
If you have a minute, take a look at this.
暇なら遊びにおいでよ。
If you're free, come hang out.
もし仕事がなく暇なら、私はこれらの本を読めるのだが。
If I didn't have a job and had free time, I could read these books.
暇なら何か食べる物を買ってきて
If you have time, pick up something to eat.
— レオン (1994)