to examine something for a certain reason
Past Participle form
Every day I check people's temperature.
Before going to work, she checks the mirrors on her car.
A: Where are you going?
B: I'm going to check if the kids are asleep.
A: Okay. Be quiet! I don't want them woken up.
I checked everything and it's now working fine.
My teacher checked my homework.
A: Did you check the computer?
B: Yes, I checked it and it's now working okay.
A: Thank you. What was wrong?
B: The mouse wasn't working.
I am checking my essay before I submit it.
The politician is checking her speech before she gives it.
A: Shall we go?
B: Hold on. I'm checking I've got everything.
A: Hurry up.
I've checked it and it looks good.
My manager has checked my email and said it was very good.
A: I've lost my keys.
B: Have you checked your pockets?
A: Of course.
B: Have you checked your bag?
A: Oh, no.