English verb conjugation
SHOULD FOOL

Regular verb: fool - fooled - fooled

Affirmation

Simple form	V-ing form
I'd fool you'd fool he'd fool we'd fool you'd fool they'd fool	I'd be fooling you'd be fooling he'd be fooling we'd be fooling you'd be fooling they'd be fooling
Perfect	V-ing perfect
I should've fooled you should've fooled he should've fooled we should've fooled you should've fooled they should've fooled	I should've been fooling you should've been fooling he should've been fooling we should've been fooling you should've been fooling they should've been fooling

Negation

Simple form	V-ing form
I shouldn't fool you shouldn't fool he shouldn't fool we shouldn't fool you shouldn't fool they shouldn't fool	I shouldn't be fooling you shouldn't be fooling he shouldn't be fooling we shouldn't be fooling you shouldn't be fooling they shouldn't be fooling
Perfect	V-ing perfect
I shouldn't have fooled you shouldn't have fooled he shouldn't have fooled we shouldn't have fooled you shouldn't have fooled they shouldn't have fooled	I shouldn't have been fooling you shouldn't have been fooling he shouldn't have been fooling we shouldn't have been fooling you shouldn't have been fooling they shouldn't have been fooling

Interrogative form

Simple form	V-ing form
should I fool? should you fool? should he fool? should we fool? should you fool? should they fool?	should I be fooling? should you be fooling? should he be fooling? should we be fooling? should you be fooling? should they be fooling?
Perfect	V-ing perfect
should I have fooled? should you have fooled? should he have fooled? should we have fooled? should you have fooled? should they have fooled?	should I have been fooling? should you have been fooling? should he have been fooling? should we have been fooling? should you have been fooling? should they have been fooling?

Interro-negative form

Simple form	V-ing form
shouldn't I fool? shouldn't you fool? shouldn't he fool? shouldn't we fool? shouldn't you fool? shouldn't they fool?	shouldn't I be fooling? shouldn't you be fooling? shouldn't he be fooling? shouldn't we be fooling? shouldn't you be fooling? shouldn't they be fooling?
Perfect	V-ing perfect
shouldn't I have fooled? shouldn't you have fooled? shouldn't he have fooled? shouldn't we have fooled? shouldn't you have fooled? shouldn't they have fooled?	shouldn't I have been fooling? shouldn't you have been fooling? shouldn't he have been fooling? shouldn't we have been fooling? shouldn't you have been fooling? shouldn't they have been fooling?