should shift
Regular verb: shift - shifted- shifted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd shift
you'd shift
she'd shift
we'd shift
you'd shift
they'd shift 	I'd be shifting
you'd be shifting
she'd be shifting
we'd be shifting
you'd be shifting
they'd be shifting	I should've shifted
you should've shifted
she should've shifted
we should've shifted
you should've shifted
they should've shifted	I should've been shifting
you should've been shifting
she should've been shifting
we should've been shifting
you should've been shifting
they should've been shifting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't shift
you shouldn't shift
she shouldn't shift
we shouldn't shift
you shouldn't shift
they shouldn't shift 	I shouldn't be shifting
you shouldn't be shifting
she shouldn't be shifting
we shouldn't be shifting
you shouldn't be shifting
they shouldn't be shifting	I shouldn't have shifted
you shouldn't have shifted
she shouldn't have shifted
we shouldn't have shifted
you shouldn't have shifted
they shouldn't have shifted	I shouldn't have been shifting
you shouldn't have been shifting
she shouldn't have been shifting
we shouldn't have been shifting
you shouldn't have been shifting
they shouldn't have been shifting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I shift?
should you shift?
should she shift?
should we shift?
should you shift?
should they shift? 	should I be shifting?
should you be shifting?
should she be shifting?
should we be shifting?
should you be shifting?
should they be shifting? 	should I have shifted?
should you have shifted?
should she have shifted?
should we have shifted?
should you have shifted?
should they have shifted? 	should I have been shifting?
should you have been shifting?
should she have been shifting?
should we have been shifting?
should you have been shifting?
should they have been shifting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I shift?
shouldn't you shift?
shouldn't she shift?
shouldn't we shift?
shouldn't you shift?
shouldn't they shift? 	shouldn't I be shifting?
shouldn't you be shifting?
shouldn't she be shifting?
shouldn't we be shifting?
shouldn't you be shifting?
shouldn't they be shifting? 	shouldn't I have shifted?
shouldn't you have shifted?
shouldn't she have shifted?
shouldn't we have shifted?
shouldn't you have shifted?
shouldn't they have shifted? 	shouldn't I have been shifting?
shouldn't you have been shifting?
shouldn't she have been shifting?
shouldn't we have been shifting?
shouldn't you have been shifting?
shouldn't they have been shifting?