English verb conjugation
SHOULD CRACKLE

Regular verb: crackle - crackled - crackled

Affirmation

Simple form	V-ing form
I'd crackle you'd crackle she'd crackle we'd crackle you'd crackle they'd crackle	I'd be crackling you'd be crackling she'd be crackling we'd be crackling you'd be crackling they'd be crackling
Perfect	V-ing perfect
I should've crackled you should've crackled she should've crackled we should've crackled you should've crackled they should've crackled	I should've been crackling you should've been crackling she should've been crackling we should've been crackling you should've been crackling they should've been crackling

Negation

Simple form	V-ing form
I shouldn't crackle you shouldn't crackle she shouldn't crackle we shouldn't crackle you shouldn't crackle they shouldn't crackle	I shouldn't be crackling you shouldn't be crackling she shouldn't be crackling we shouldn't be crackling you shouldn't be crackling they shouldn't be crackling
Perfect	V-ing perfect
I shouldn't have crackled you shouldn't have crackled she shouldn't have crackled we shouldn't have crackled you shouldn't have crackled they shouldn't have crackled	I shouldn't have been crackling you shouldn't have been crackling she shouldn't have been crackling we shouldn't have been crackling you shouldn't have been crackling they shouldn't have been crackling

Interrogative form

Simple form	V-ing form
should I crackle? should you crackle? should she crackle? should we crackle? should you crackle? should they crackle?	should I be crackling? should you be crackling? should she be crackling? should we be crackling? should you be crackling? should they be crackling?
Perfect	V-ing perfect
should I have crackled? should you have crackled? should she have crackled? should we have crackled? should you have crackled? should they have crackled?	should I have been crackling? should you have been crackling? should she have been crackling? should we have been crackling? should you have been crackling? should they have been crackling?

Interro-negative form

Simple form	V-ing form
shouldn't I crackle? shouldn't you crackle? shouldn't she crackle? shouldn't we crackle? shouldn't you crackle? shouldn't they crackle?	shouldn't I be crackling? shouldn't you be crackling? shouldn't she be crackling? shouldn't we be crackling? shouldn't you be crackling? shouldn't they be crackling?
Perfect	V-ing perfect
shouldn't I have crackled? shouldn't you have crackled? shouldn't she have crackled? shouldn't we have crackled? shouldn't you have crackled? shouldn't they have crackled?	shouldn't I have been crackling? shouldn't you have been crackling? shouldn't she have been crackling? shouldn't we have been crackling? shouldn't you have been crackling? shouldn't they have been crackling?