-It’s no use/ It doesn’t work

Examples:

-People tried to stop her but it was no use
-People tried to stop her but it didn’t work.

-I had ibuprophen instead of going to the doctor’s but it was no use / it didn’t work.

-I wanted to ask her out but I realised it was no use.

IT’S NO USE+ ING VERB

-I think it’s no use trying to convince you. You’ve alredy made up your mind.

-It’s no use trying to make peace

-It’s no use trying to repair this car. It’s not going to work anymore.