English verb conjugation
SHOULD TUSK

Regular verb: tusk - tusked - tusked

Affirmation

Simple form	V-ing form
I'd tusk you'd tusk he'd tusk we'd tusk you'd tusk they'd tusk	I'd be tusking you'd be tusking he'd be tusking we'd be tusking you'd be tusking they'd be tusking
Perfect	V-ing perfect
I should've tusked you should've tusked he should've tusked we should've tusked you should've tusked they should've tusked	I should've been tusking you should've been tusking he should've been tusking we should've been tusking you should've been tusking they should've been tusking

Negation

Simple form	V-ing form
I shouldn't tusk you shouldn't tusk he shouldn't tusk we shouldn't tusk you shouldn't tusk they shouldn't tusk	I shouldn't be tusking you shouldn't be tusking he shouldn't be tusking we shouldn't be tusking you shouldn't be tusking they shouldn't be tusking
Perfect	V-ing perfect
I shouldn't have tusked you shouldn't have tusked he shouldn't have tusked we shouldn't have tusked you shouldn't have tusked they shouldn't have tusked	I shouldn't have been tusking you shouldn't have been tusking he shouldn't have been tusking we shouldn't have been tusking you shouldn't have been tusking they shouldn't have been tusking

Interrogative form

Simple form	V-ing form
should I tusk? should you tusk? should he tusk? should we tusk? should you tusk? should they tusk?	should I be tusking? should you be tusking? should he be tusking? should we be tusking? should you be tusking? should they be tusking?
Perfect	V-ing perfect
should I have tusked? should you have tusked? should he have tusked? should we have tusked? should you have tusked? should they have tusked?	should I have been tusking? should you have been tusking? should he have been tusking? should we have been tusking? should you have been tusking? should they have been tusking?

Interro-negative form

Simple form	V-ing form
shouldn't I tusk? shouldn't you tusk? shouldn't he tusk? shouldn't we tusk? shouldn't you tusk? shouldn't they tusk?	shouldn't I be tusking? shouldn't you be tusking? shouldn't he be tusking? shouldn't we be tusking? shouldn't you be tusking? shouldn't they be tusking?
Perfect	V-ing perfect
shouldn't I have tusked? shouldn't you have tusked? shouldn't he have tusked? shouldn't we have tusked? shouldn't you have tusked? shouldn't they have tusked?	shouldn't I have been tusking? shouldn't you have been tusking? shouldn't he have been tusking? shouldn't we have been tusking? shouldn't you have been tusking? shouldn't they have been tusking?