English verb conjugation
SHOULD YAK

Regular verb: yak - yaked - yaked

Affirmation

Simple form	V-ing form
I'd yak you'd yak he'd yak we'd yak you'd yak they'd yak	I'd be yaking you'd be yaking he'd be yaking we'd be yaking you'd be yaking they'd be yaking
Perfect	V-ing perfect
I should've yaked you should've yaked he should've yaked we should've yaked you should've yaked they should've yaked	I should've been yaking you should've been yaking he should've been yaking we should've been yaking you should've been yaking they should've been yaking

Negation

Simple form	V-ing form
I shouldn't yak you shouldn't yak he shouldn't yak we shouldn't yak you shouldn't yak they shouldn't yak	I shouldn't be yaking you shouldn't be yaking he shouldn't be yaking we shouldn't be yaking you shouldn't be yaking they shouldn't be yaking
Perfect	V-ing perfect
I shouldn't have yaked you shouldn't have yaked he shouldn't have yaked we shouldn't have yaked you shouldn't have yaked they shouldn't have yaked	I shouldn't have been yaking you shouldn't have been yaking he shouldn't have been yaking we shouldn't have been yaking you shouldn't have been yaking they shouldn't have been yaking

Interrogative form

Simple form	V-ing form
should I yak? should you yak? should he yak? should we yak? should you yak? should they yak?	should I be yaking? should you be yaking? should he be yaking? should we be yaking? should you be yaking? should they be yaking?
Perfect	V-ing perfect
should I have yaked? should you have yaked? should he have yaked? should we have yaked? should you have yaked? should they have yaked?	should I have been yaking? should you have been yaking? should he have been yaking? should we have been yaking? should you have been yaking? should they have been yaking?

Interro-negative form

Simple form	V-ing form
shouldn't I yak? shouldn't you yak? shouldn't he yak? shouldn't we yak? shouldn't you yak? shouldn't they yak?	shouldn't I be yaking? shouldn't you be yaking? shouldn't he be yaking? shouldn't we be yaking? shouldn't you be yaking? shouldn't they be yaking?
Perfect	V-ing perfect
shouldn't I have yaked? shouldn't you have yaked? shouldn't he have yaked? shouldn't we have yaked? shouldn't you have yaked? shouldn't they have yaked?	shouldn't I have been yaking? shouldn't you have been yaking? shouldn't he have been yaking? shouldn't we have been yaking? shouldn't you have been yaking? shouldn't they have been yaking?