COME ON (1), GET UP (1), TRIP OVER

come on! = do it! (we encourage somebody to do something)

examples:

• Come on! Call him! I know he will be very happy if you do.
• Come on! Help him! He is your brother.
• Come on! Stop crying! It wasn 't that terrible!
• Come on! Hurry up!
• Come on! Tell us the truth!
• You can do it now! Come on!
• Quickly! Come on! The train is about to leave.

get up =  stand up

• I wasn 't feeling well but I got up to answer the phone.
• Get up! Help me carry this. It 's too heavy.
• We all got up when grandfather entered the room.
• When the Judge comes into the Courthouse, everyone gets up out of respect.
• Please, don 't get up. I can find what I want myself. I don 't need any help.

trip over (something) =  hit your foot against something and almost fall

• While I was running to answer the phone, I tripped over a book and fell flat on the floor.
• Don' t run in the house, you kids. You' re always tripping over and crying.
• She tripped over and sprained her ankle.
• Grandpa tripped over and broke his leg.
• Pick up the magazines off the floor. Someone might trip over.