English verb conjugation
SHOULD GROAN

Regular verb: groan - groaned - groaned

Affirmation

Simple form	V-ing form
I'd groan you'd groan he'd groan we'd groan you'd groan they'd groan	I'd be groaning you'd be groaning he'd be groaning we'd be groaning you'd be groaning they'd be groaning
Perfect	V-ing perfect
I should've groaned you should've groaned he should've groaned we should've groaned you should've groaned they should've groaned	I should've been groaning you should've been groaning he should've been groaning we should've been groaning you should've been groaning they should've been groaning

Negation

Simple form	V-ing form
I shouldn't groan you shouldn't groan he shouldn't groan we shouldn't groan you shouldn't groan they shouldn't groan	I shouldn't be groaning you shouldn't be groaning he shouldn't be groaning we shouldn't be groaning you shouldn't be groaning they shouldn't be groaning
Perfect	V-ing perfect
I shouldn't have groaned you shouldn't have groaned he shouldn't have groaned we shouldn't have groaned you shouldn't have groaned they shouldn't have groaned	I shouldn't have been groaning you shouldn't have been groaning he shouldn't have been groaning we shouldn't have been groaning you shouldn't have been groaning they shouldn't have been groaning

Interrogative form

Simple form	V-ing form
should I groan? should you groan? should he groan? should we groan? should you groan? should they groan?	should I be groaning? should you be groaning? should he be groaning? should we be groaning? should you be groaning? should they be groaning?
Perfect	V-ing perfect
should I have groaned? should you have groaned? should he have groaned? should we have groaned? should you have groaned? should they have groaned?	should I have been groaning? should you have been groaning? should he have been groaning? should we have been groaning? should you have been groaning? should they have been groaning?

Interro-negative form

Simple form	V-ing form
shouldn't I groan? shouldn't you groan? shouldn't he groan? shouldn't we groan? shouldn't you groan? shouldn't they groan?	shouldn't I be groaning? shouldn't you be groaning? shouldn't he be groaning? shouldn't we be groaning? shouldn't you be groaning? shouldn't they be groaning?
Perfect	V-ing perfect
shouldn't I have groaned? shouldn't you have groaned? shouldn't he have groaned? shouldn't we have groaned? shouldn't you have groaned? shouldn't they have groaned?	shouldn't I have been groaning? shouldn't you have been groaning? shouldn't he have been groaning? shouldn't we have been groaning? shouldn't you have been groaning? shouldn't they have been groaning?