そこで暇つぶしのちょっとしたアイディアが浮んだ。の英語

Then a little time-wasting idea came to mind.

That's a good waste of time.

If I were free, I could help you.

I was bored, so I wandered around town.

I had some free time, so I wandered around town.

I'm good at killing time.

I forgot to bring my book, so I'm free.

of a person, being relaxed with a lot of free time

Trying to do such a thing is a waste of time.

I strolled along the streets to kill time.

I wish to leave your service for certain reasons of my own.

If you are free, come around to see me.

If you're free, come around to see me.

You can do it at your leisure.

Do it when you have time.

Try to make good use of your spare time.

to dally one's time away―mope one's time away

I don't know what to do with my leisure.

If you're free, watch this for a little while.

If you have free time, watch this for a little while.

If you have spare time, watch this for a little while.

Do this at your leisure.

If I had time, I would go with you.

I spent idle days during the vacation.

You look like you have free time.

You look like you have nothing to do.

Don't you have anything better to do?

Leisure has been viewed as a means to an end.

I have free time since I have nothing to do.

to dally one's time away―mope one's time away