Grammar fix
join in
participate
to take part in an activity or conversation with others who are already doing it
phrasal verbB1common
Hear it in context
Notice where the phrase sounds natural.
- Everyone was dancing, so I decided to join in.daily life
- In my opinion, it's important to join in group discussions at university because it helps you learn from others.IELTS speaking
Fix the pattern
Pattern: join in (with sth/sb)
WrongWhy don't you join in to the game?
RightWhy don't you join in the game? / Why don't you join in?
'Join IN' (no 'to'); optionally 'join in WITH us'.
Patternjoin in (with sth/sb)
Use it right
Choose the version that sounds natural in speech.
'Join in' is the warm, natural invitation. 'Participate in the activity' is formal.
Build natural chunks
Words that usually travel with it.
join inthe funthe singingwith usthe conversation
Don't confuse it
'Join' is used for becoming a member of a group or organization, while 'join in' is used for taking part in an activity or event.