The words that make up non-separable phrasal verbs cannot be separated, and they are not followed by a noun or a pronoun object.
- When she saw what happened, she broke down.
(No noun or pronoun object follows the phrasal verb. Break down = lose control of one's emotions)
- We decided that we should get together more regularly.
(Get together = meet and spend time with one another)
- They shouted to him to hurry up.
(Hurry up = act or move quickly)
- He asked them to join in the singing.
(Join in = participate or become involved in an activity)
- We enjoyed looking around an organic farm.
(Look around = go through or explore a place)
- He was given a week to move out after he fought with other tenants.
(Move out = leave a place [house, etc] where one has been living)
- I had to pull over when I had a puncture.
(Pull over = move and stop a vehicle to the side of a road)
- We waited but he didn't show up.
(Show up = appear somewhere by appointment or unexpectedly)
- After what happened, he promised to speak up.
(Speak up = say openly about something)
- We stayed up late to watch the match on television.
(Stay up = continue to be awake)