English verb conjugation
SHOULD YOWL

Regular verb: yowl - yowled - yowled

Affirmation

Simple form	V-ing form
I'd yowl you'd yowl he'd yowl we'd yowl you'd yowl they'd yowl	I'd be yowling you'd be yowling he'd be yowling we'd be yowling you'd be yowling they'd be yowling
Perfect	V-ing perfect
I should've yowled you should've yowled he should've yowled we should've yowled you should've yowled they should've yowled	I should've been yowling you should've been yowling he should've been yowling we should've been yowling you should've been yowling they should've been yowling

Negation

Simple form	V-ing form
I shouldn't yowl you shouldn't yowl he shouldn't yowl we shouldn't yowl you shouldn't yowl they shouldn't yowl	I shouldn't be yowling you shouldn't be yowling he shouldn't be yowling we shouldn't be yowling you shouldn't be yowling they shouldn't be yowling
Perfect	V-ing perfect
I shouldn't have yowled you shouldn't have yowled he shouldn't have yowled we shouldn't have yowled you shouldn't have yowled they shouldn't have yowled	I shouldn't have been yowling you shouldn't have been yowling he shouldn't have been yowling we shouldn't have been yowling you shouldn't have been yowling they shouldn't have been yowling

Interrogative form

Simple form	V-ing form
should I yowl? should you yowl? should he yowl? should we yowl? should you yowl? should they yowl?	should I be yowling? should you be yowling? should he be yowling? should we be yowling? should you be yowling? should they be yowling?
Perfect	V-ing perfect
should I have yowled? should you have yowled? should he have yowled? should we have yowled? should you have yowled? should they have yowled?	should I have been yowling? should you have been yowling? should he have been yowling? should we have been yowling? should you have been yowling? should they have been yowling?

Interro-negative form

Simple form	V-ing form
shouldn't I yowl? shouldn't you yowl? shouldn't he yowl? shouldn't we yowl? shouldn't you yowl? shouldn't they yowl?	shouldn't I be yowling? shouldn't you be yowling? shouldn't he be yowling? shouldn't we be yowling? shouldn't you be yowling? shouldn't they be yowling?
Perfect	V-ing perfect
shouldn't I have yowled? shouldn't you have yowled? shouldn't he have yowled? shouldn't we have yowled? shouldn't you have yowled? shouldn't they have yowled?	shouldn't I have been yowling? shouldn't you have been yowling? shouldn't he have been yowling? shouldn't we have been yowling? shouldn't you have been yowling? shouldn't they have been yowling?