You abandoned your usual sharp wits and wasted your time in pointless thought.

Nothing will be in vain as long as you make use of them during the rest of your life.

That's why I'm so frustrated that a creep like him ruined all my hard work.

There's nothing I can do, but I struggle in vain!

It's useless. No matter how you think, my victory is certain.

It's not very difficult to see what might be bothering a real idol, but I don't want to waste too much time or energy.

Yet you seem like just a kid to me, so you're wasting your time!

Their sacrifice wasn't in vain.

We won't let his sacrifice be in vain, Saki.

We won't let Matsushita-kun's sacrifice go to waste.

If I’m just going to die, there’s no use telling!

It's futile. If you continue to run in circles, you'll never learn the truth.

Please don't waste my time.

I swear I won't waste everything that you've done for me, Homura.

The moment she acknowledges that everything she has done is pointless, and your fate is impossible to change, Homura Akemi will fall into despair and turn into a Grief Seed.

I've got to tell Mai to head back home, or else Sayuri-san's food is going to go to waste.

No one would sell out one of their own, so I don't think that would work.

Please... Don't waste all the effort you've already put into this!

Evenin', Saika. It's no use, Setton. It won't reply to anything we say. I have to cut, more.

It's a waste of time to deliver newspapers without knowing what's in them.