Focus on the pronunciation of tick sb/sth off
tick sb/sth off — Phrasal Verb with tick
/tɪk/ verb [T] UK (US check)
UK (US check sb/sth off)
› to put a symbol next to a name, etc. on a list to show that something has been done or dealt with, someone is present, etc.: Tick off all the people on the list who have replied.