Might have + V_pII:

• She might have forgotten to call you last night.
• They might have finished the project by now.

Might not have + V_pII:

• He might not have received the email yet.
• They might not have understood the instructions clearly.

Prevent sb from doing sth:

• The heavy rain prevented us from going to the beach.
• The new law prevents people from smoking in public places.

Get used to + V_ing:

• I am getting used to waking up early every morning.
• She needs to get used to driving on the left side of the road.

Help sb with sth:

• Can you help me with this math problem?
• He helped her with moving the furniture.