Okay i have read the whole play and i can help you out.
The dreams in the play symbolizes reality and how they were switched around with lovers who they didn't really love. I don't have the textual evidence but i know this because i had the same question.
Hope this helps:)
I think it's past perfect progressive.
Answer:
I've been to church.
I don't go to church.
I go to church by car.
We're going to church.
How old is that church
How old is this church?
He's at church right now.
I go to church every day.
I go to church on Sunday.
We go to church together.
Explanation:
