Recently, I've been troubled by an increase in nuisance calls.

Nowadays, he goes to the gym every day.

Don't you think his behavior has been strange lately?

The population is increasing rapidly.

He seemed to be in trouble.

He is having trouble solving math problems.

I was greatly troubled by his actions.

Your loud voice is really annoying.

His behavior is causing a nuisance to everyone.

Let's make a phone call to him.