I'd be ski skiing you'd be ski skiing he'd be ski skiing we'd be ski skiing you'd be ski skiing they'd be ski skiing
Perfect
I should've ski skied you should've ski skied he should've ski skied we should've ski skied you should've ski skied they should've ski skied
V-ing perfect
I should've been ski skiing you should've been ski skiing he should've been ski skiing we should've been ski skiing you should've been ski skiing they should've been ski skiing
Negation
Simple form
I shouldn't ski ski you shouldn't ski ski he shouldn't ski ski we shouldn't ski ski you shouldn't ski ski they shouldn't ski ski
V-ing form
I shouldn't be ski skiing you shouldn't be ski skiing he shouldn't be ski skiing we shouldn't be ski skiing you shouldn't be ski skiing they shouldn't be ski skiing
Perfect
I shouldn't have ski skied you shouldn't have ski skied he shouldn't have ski skied we shouldn't have ski skied you shouldn't have ski skied they shouldn't have ski skied
V-ing perfect
I shouldn't have been ski skiing you shouldn't have been ski skiing he shouldn't have been ski skiing we shouldn't have been ski skiing you shouldn't have been ski skiing they shouldn't have been ski skiing
Interrogative form
Simple form
should I ski ski? should you ski ski? should he ski ski? should we ski ski? should you ski ski? should they ski ski?
V-ing form
should I be ski skiing? should you be ski skiing? should he be ski skiing? should we be ski skiing? should you be ski skiing? should they be ski skiing?
Perfect
should I have ski skied? should you have ski skied? should he have ski skied? should we have ski skied? should you have ski skied? should they have ski skied?
V-ing perfect
should I have been ski skiing? should you have been ski skiing? should he have been ski skiing? should we have been ski skiing? should you have been ski skiing? should they have been ski skiing?
Interro-negative form
Simple form
shouldn't I ski ski? shouldn't you ski ski? shouldn't he ski ski? shouldn't we ski ski? shouldn't you ski ski? shouldn't they ski ski?
V-ing form
shouldn't I be ski skiing? shouldn't you be ski skiing? shouldn't he be ski skiing? shouldn't we be ski skiing? shouldn't you be ski skiing? shouldn't they be ski skiing?
Perfect
shouldn't I have ski skied? shouldn't you have ski skied? shouldn't he have ski skied? shouldn't we have ski skied? shouldn't you have ski skied? shouldn't they have ski skied?
V-ing perfect
shouldn't I have been ski skiing? shouldn't you have been ski skiing? shouldn't he have been ski skiing? shouldn't we have been ski skiing? shouldn't you have been ski skiing? shouldn't they have been ski skiing?