It started raining. It 
started to rain.

She continued to write 
all her life. She 
continued writing all her 
life.

We proposed to meet on 
Friday. We proposed 
meeting on Friday.

He didn't bother to lock 
the door. He didn't 
bother locking the door.

Do you intend to make a 
complaint? Do you 
intend making a 
complaint?