Sequential actions
This expression indicates that the action in the following clause is done based on the result of first completing the action in the preceding clause.
Moreover, it also indicates that the speaker performed the second action in a different location than that of the first action.
The shortened form -아/어다 can also be used.
-아/어다가 cannot be used in the past and future tenses.
The form -아/어다 주다 is used when making a request to someone, but note that this form is different in meaning than -아/어 주다, which looks similar.
It expresses that the second clause is performed based on the result of first completing the action in the first clause. The first and seconds clause must happens in different locations.
아/어다가 can be shortened to the form -다.