~ないようにする (try not to)

She tried not to think about the young man, but it was no use.

She tried not to show her sadness at the party.

She hid the letter carefully so no one would see it.

I'll try not to get in the way of your studies.

Always cook over low heat so it doesn't come to a boil.

Today's a school day. I'd better not be late...

Let's try not to stray from the main topic.

I didn't visit you so as not to disturb you.

She made sure he couldn't see her tears.

She tried to keep her distance from him.

She tried not to cry, but she couldn't help it.

I have a uterine fibroid. Is there any way to keep it from growing?

Stay out of the way.