check *****
check up on
look into **
check out **
suss out
check over
go over **
check into

On average, about 1,500 people check into his site every day.

She should check into some of those and see whether they could be moved outside.

She said she'd check into it and get back to me.

At the same time, he decided he'd do well to check into a hotel, though not one of the better ones.

But if the hot water doesn't come back on soon, check into another hotel.

Go with a close friend and check into the hotel.

He did not want to check into a mental hospital.

Too late to wish she'd never wanted to check into their activities.

He finally checked himself into a treatment center, she said.

And if they'll just check into a hotel, they can still get it.