I want to join your team.
I want to join in your team.
Thanks
"Join in" is is used when we refer to involving in an activity with other people. They are teaching the poor children. Why don't you join in ?
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"Join in" is is used when we refer to involving in an activity with other people.
They are teaching the poor children. Why don't you join in?
So, I think join is all right in your sentence.