Simple Future
Subject + will have + noun.
We will have a friendship.
We will not have a friendship.
Will we have a friendship?
Will we not have a friendship?
Future Perfect
Subject + will have had + noun + point/ period of time.
We will have had a friendship for years by 2030.
We will not have had a friendship for long by then.
Will we have had a friendship for five years by next year?
Will we not have had a friendship by that time?
Simple
Subject + would have + noun.
We would have a friendship if we tried.
We would not have a friendship without trust.
Would we have a friendship in that city?
Would we not have a friendship then?
Perfect
Subject + would have had + noun + point/ period of time.
We would have had a friendship for ten years if we had stayed together.
We would not have had a friendship that long without effort.
Would we have had a friendship by now if we had met earlier?
Would we not have had a friendship by then?
Simple
Subject + may have + noun.
We may have a friendship in the future.
We may not have a friendship if we quarrel.
May we have a friendship from now on?
May we not have a friendship?
Perfect
Subject + may have had + noun + point/ period of time.
We may have had a friendship for years before we realized.
We may not have a had friendship so long under that condition.
May we have had a friendship for such a long time?
May we not have had a friendship for those years?
Simple
Subject + might have + noun.
We might have a friendship in college.
We might not have a friendship without honesty.
Might we have a friendship again?
Might we not have a friendship at all?
Perfect
Subject + might have had + noun + point/ period of time.
We might have had a friendship for life if we had stayed close.
We might not have had a friendship for that long under those circumstances.
Might we have had a friendship for ten years already?
Might we not have had a friendship for even one year?
Simple
Subject + used to have + noun.
We used to have a friendship in school.
We did not use to have a friendship that way.
Did we use to have a friendship?
Did we not use to have a friendship?
Simple
Subject + can have + noun.
We can have a friendship if we respect each other.
We cannot have a friendship without understanding.
Can we have a friendship for life?
Can we not have a friendship at all?
Simple
Subject + could have + noun.
We could have a friendship in that class.
We could not have a friendship without communication.
Could we have a friendship again?
Could we not have a friendship then?
Perfect
Subject + could have had + noun + point/ period of time.
We could have had a friendship in 2020.
We could not have had a friendship since 2020.
Could we have had a friendship in 2020?
Could we not have had a friendship since 2020?
Simple
Subject + should have + noun.
We should have a friendship.
We should not have a friendship without honesty.
Should we have a friendship now?
Should we not have a friendship today?
Perfect
Subject + should have had + noun + point/ period of time.
We should have had a friendship in 2010.
We should not have had a friendship for that long under those lies.
Should we have had a friendship since 2020?
Should we not have had a friendship till now?
Simple
Subject + ought to have + noun.
We ought to have a friendship.
We ought not to have a friendship without respect.
Ought we to have a friendship again?
Ought we not to have a friendship at all?
Perfect
Subject + should have had + noun + point/ period of time.
We ought to have had a friendship for years.
We ought not to have had a friendship for that long under those conditions.
Ought we to have had a friendship by now?
Ought we not to have had a friendship since the beginning?
Simple
Subject + must have + noun.
We must have a friendship.
We must not have a friendship without trust.
Must we have a friendship?
Must we not have a friendship?
Perfect
Subject + must have had + noun + point/ period of time.
We must have had a friendship for years.
We must not have had a friendship for that long without honesty.
Must we have had a friendship in 2000?
Must we not have had a friendship since 2000?
Simple
Subject + need not have + noun.
We need not a have a friendship.
Need we have a friendship?
Need we not have a friendship?
Perfect
We need not have had a friendship.
Need we have had a friendship?
Need we not have had friendship?
Simple
Subject + dare not have + noun.
We dare not have a friendship.
Dare we have a friendship?
Dare we not have a friendship?
Perfect
Subject + need to have had + noun + point/ period of time.
We dare not have had a friendship last year.
Dare we have had a friendship in 2025?
Dare we not have had a friendship since 2025?