English verb conjugation
SHOULD NIP

Regular verb: nip - nipped - nipped

Affirmation

Simple form	V-ing form
I'd nip you'd nip he'd nip we'd nip you'd nip they'd nip	I'd be nipping you'd be nipping he'd be nipping we'd be nipping you'd be nipping they'd be nipping
Perfect	V-ing perfect
I should've nipped you should've nipped he should've nipped we should've nipped you should've nipped they should've nipped	I should've been nipping you should've been nipping he should've been nipping we should've been nipping you should've been nipping they should've been nipping

Negation

Simple form	V-ing form
I shouldn't nip you shouldn't nip he shouldn't nip we shouldn't nip you shouldn't nip they shouldn't nip	I shouldn't be nipping you shouldn't be nipping he shouldn't be nipping we shouldn't be nipping you shouldn't be nipping they shouldn't be nipping
Perfect	V-ing perfect
I shouldn't have nipped you shouldn't have nipped he shouldn't have nipped we shouldn't have nipped you shouldn't have nipped they shouldn't have nipped	I shouldn't have been nipping you shouldn't have been nipping he shouldn't have been nipping we shouldn't have been nipping you shouldn't have been nipping they shouldn't have been nipping

Interrogative form

Simple form	V-ing form
should I nip? should you nip? should he nip? should we nip? should you nip? should they nip?	should I be nipping? should you be nipping? should he be nipping? should we be nipping? should you be nipping? should they be nipping?
Perfect	V-ing perfect
should I have nipped? should you have nipped? should he have nipped? should we have nipped? should you have nipped? should they have nipped?	should I have been nipping? should you have been nipping? should he have been nipping? should we have been nipping? should you have been nipping? should they have been nipping?

Interro-negative form

Simple form	V-ing form
shouldn't I nip? shouldn't you nip? shouldn't he nip? shouldn't we nip? shouldn't you nip? shouldn't they nip?	shouldn't I be nipping? shouldn't you be nipping? shouldn't he be nipping? shouldn't we be nipping? shouldn't you be nipping? shouldn't they be nipping?
Perfect	V-ing perfect
shouldn't I have nipped? shouldn't you have nipped? shouldn't he have nipped? shouldn't we have nipped? shouldn't you have nipped? shouldn't they have nipped?	shouldn't I have been nipping? shouldn't you have been nipping? shouldn't he have been nipping? shouldn't we have been nipping? shouldn't you have been nipping? shouldn't they have been nipping?