Lesson Nineteen

while

"While" expresses that something is happening at the same time as something else; two things are happening at once.

examples 

 1. She likes to work on her laptop while she’s on vacation.

pic

2. This dog is sitting patiently and waiting while her owner puts on her leash.

dog

 3. While he’s at work, he wears a hardhat.

working

 4. This police officer wears a uniform while he’s on duty.

on duty
 5. Many people around the world use chopsticks while they eat.

eating

 6. This barber likes to talk to his customers while he gives them a haircut.
haircut
 7. While I wait for my apple trees to produce apples, I grow vegetables.
pic

 

Next: Lesson Twenty

as long as