English verb conjugation
SHOULD WHIFF

Regular verb: whiff - whiffed - whiffed

Affirmation

Simple form	V-ing form
I'd whiff you'd whiff he'd whiff we'd whiff you'd whiff they'd whiff	I'd be whiffing you'd be whiffing he'd be whiffing we'd be whiffing you'd be whiffing they'd be whiffing
Perfect	V-ing perfect
I should've whiffed you should've whiffed he should've whiffed we should've whiffed you should've whiffed they should've whiffed	I should've been whiffing you should've been whiffing he should've been whiffing we should've been whiffing you should've been whiffing they should've been whiffing

Negation

Simple form	V-ing form
I shouldn't whiff you shouldn't whiff he shouldn't whiff we shouldn't whiff you shouldn't whiff they shouldn't whiff	I shouldn't be whiffing you shouldn't be whiffing he shouldn't be whiffing we shouldn't be whiffing you shouldn't be whiffing they shouldn't be whiffing
Perfect	V-ing perfect
I shouldn't have whiffed you shouldn't have whiffed he shouldn't have whiffed we shouldn't have whiffed you shouldn't have whiffed they shouldn't have whiffed	I shouldn't have been whiffing you shouldn't have been whiffing he shouldn't have been whiffing we shouldn't have been whiffing you shouldn't have been whiffing they shouldn't have been whiffing

Interrogative form

Simple form	V-ing form
should I whiff? should you whiff? should he whiff? should we whiff? should you whiff? should they whiff?	should I be whiffing? should you be whiffing? should he be whiffing? should we be whiffing? should you be whiffing? should they be whiffing?
Perfect	V-ing perfect
should I have whiffed? should you have whiffed? should he have whiffed? should we have whiffed? should you have whiffed? should they have whiffed?	should I have been whiffing? should you have been whiffing? should he have been whiffing? should we have been whiffing? should you have been whiffing? should they have been whiffing?

Interro-negative form

Simple form	V-ing form
shouldn't I whiff? shouldn't you whiff? shouldn't he whiff? shouldn't we whiff? shouldn't you whiff? shouldn't they whiff?	shouldn't I be whiffing? shouldn't you be whiffing? shouldn't he be whiffing? shouldn't we be whiffing? shouldn't you be whiffing? shouldn't they be whiffing?
Perfect	V-ing perfect
shouldn't I have whiffed? shouldn't you have whiffed? shouldn't he have whiffed? shouldn't we have whiffed? shouldn't you have whiffed? shouldn't they have whiffed?	shouldn't I have been whiffing? shouldn't you have been whiffing? shouldn't he have been whiffing? shouldn't we have been whiffing? shouldn't you have been whiffing? shouldn't they have been whiffing?