English verb conjugation
SHOULD ACHE

Regular verb: ache - ached - ached

Affirmation

Simple form	V-ing form
I'd ache you'd ache she'd ache we'd ache you'd ache they'd ache	I'd be aching you'd be aching she'd be aching we'd be aching you'd be aching they'd be aching
Perfect	V-ing perfect
I should've ached you should've ached she should've ached we should've ached you should've ached they should've ached	I should've been aching you should've been aching she should've been aching we should've been aching you should've been aching they should've been aching

Negation

Simple form	V-ing form
I shouldn't ache you shouldn't ache she shouldn't ache we shouldn't ache you shouldn't ache they shouldn't ache	I shouldn't be aching you shouldn't be aching she shouldn't be aching we shouldn't be aching you shouldn't be aching they shouldn't be aching
Perfect	V-ing perfect
I shouldn't have ached you shouldn't have ached she shouldn't have ached we shouldn't have ached you shouldn't have ached they shouldn't have ached	I shouldn't have been aching you shouldn't have been aching she shouldn't have been aching we shouldn't have been aching you shouldn't have been aching they shouldn't have been aching

Interrogative form

Simple form	V-ing form
should I ache? should you ache? should she ache? should we ache? should you ache? should they ache?	should I be aching? should you be aching? should she be aching? should we be aching? should you be aching? should they be aching?
Perfect	V-ing perfect
should I have ached? should you have ached? should she have ached? should we have ached? should you have ached? should they have ached?	should I have been aching? should you have been aching? should she have been aching? should we have been aching? should you have been aching? should they have been aching?

Interro-negative form

Simple form	V-ing form
shouldn't I ache? shouldn't you ache? shouldn't she ache? shouldn't we ache? shouldn't you ache? shouldn't they ache?	shouldn't I be aching? shouldn't you be aching? shouldn't she be aching? shouldn't we be aching? shouldn't you be aching? shouldn't they be aching?
Perfect	V-ing perfect
shouldn't I have ached? shouldn't you have ached? shouldn't she have ached? shouldn't we have ached? shouldn't you have ached? shouldn't they have ached?	shouldn't I have been aching? shouldn't you have been aching? shouldn't she have been aching? shouldn't we have been aching? shouldn't you have been aching? shouldn't they have been aching?