How can I express enforcement in the past,please looking at below sentence
present : He has to wait for a long time. past :He had to wait for a long time (it's not past perfect i want to mention an enforcement in the past)
Is second sentence true?
He has to wait.
is present tense. He must wait now.
He had to wait [yesterday].
is past tense. He was forced to wait at some point in the past, perhaps yesterday.
He has had to wait [three times this week].
is present perfect. He was forced to wait at some indeterminate times in the past, which times could extend all the way up to the present.
[Before they built the new bridge] he had had to wait [for up to three hours to cross the river].
is past perfect. His waiting took place in the past but before a specified time also in the past, like the building of a new bridge.
He will have to wait [until I get back].
is future. His waiting extends beyond now, perhaps because I haven't returned.
He will have waited three hours by the time I get back.
is future perfect. It contemplates completed action in the future. I haven't returned yet but when I do, three hours of waiting will be over.