Is 'To Write' Separable or Inseparable? - Phrasal Verb Quiz

Quiz for Verb: 'To write'

Is the phrasal verb 'write' separable or inseparable in the following examples?

'Write down' - Make notes

'Write up' - Make complete written version

'Write off' - Destroy a car in an accident

'Write out' - Write something completely

'Write in' - Send a letter to a TV station, etc.