I have read the below sentences in an english grammar book which had no explanation about why
a past form,not a present,is used in these kinds of structures.
-It looks as though we HAD a busy afternoon in front of us.
-It looks as if we WERE expected to wait here.
-I can't see any other door .It looks as if we WENT in here.
Could you explain the reason why past forms are used and if present forms were to be used, would
that change the meanings of sentences ?