English verb conjugation
SHOULD TOUGH

Regular verb: tough - toughed - toughed

Affirmation

Simple form	V-ing form
I'd tough you'd tough he'd tough we'd tough you'd tough they'd tough	I'd be toughing you'd be toughing he'd be toughing we'd be toughing you'd be toughing they'd be toughing
Perfect	V-ing perfect
I should've toughed you should've toughed he should've toughed we should've toughed you should've toughed they should've toughed	I should've been toughing you should've been toughing he should've been toughing we should've been toughing you should've been toughing they should've been toughing

Negation

Simple form	V-ing form
I shouldn't tough you shouldn't tough he shouldn't tough we shouldn't tough you shouldn't tough they shouldn't tough	I shouldn't be toughing you shouldn't be toughing he shouldn't be toughing we shouldn't be toughing you shouldn't be toughing they shouldn't be toughing
Perfect	V-ing perfect
I shouldn't have toughed you shouldn't have toughed he shouldn't have toughed we shouldn't have toughed you shouldn't have toughed they shouldn't have toughed	I shouldn't have been toughing you shouldn't have been toughing he shouldn't have been toughing we shouldn't have been toughing you shouldn't have been toughing they shouldn't have been toughing

Interrogative form

Simple form	V-ing form
should I tough? should you tough? should he tough? should we tough? should you tough? should they tough?	should I be toughing? should you be toughing? should he be toughing? should we be toughing? should you be toughing? should they be toughing?
Perfect	V-ing perfect
should I have toughed? should you have toughed? should he have toughed? should we have toughed? should you have toughed? should they have toughed?	should I have been toughing? should you have been toughing? should he have been toughing? should we have been toughing? should you have been toughing? should they have been toughing?

Interro-negative form

Simple form	V-ing form
shouldn't I tough? shouldn't you tough? shouldn't he tough? shouldn't we tough? shouldn't you tough? shouldn't they tough?	shouldn't I be toughing? shouldn't you be toughing? shouldn't he be toughing? shouldn't we be toughing? shouldn't you be toughing? shouldn't they be toughing?
Perfect	V-ing perfect
shouldn't I have toughed? shouldn't you have toughed? shouldn't he have toughed? shouldn't we have toughed? shouldn't you have toughed? shouldn't they have toughed?	shouldn't I have been toughing? shouldn't you have been toughing? shouldn't he have been toughing? shouldn't we have been toughing? shouldn't you have been toughing? shouldn't they have been toughing?