should waste
Regular verb: waste - wasted- wasted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd waste
you'd waste
she'd waste
we'd waste
you'd waste
they'd waste 	I'd be wasting
you'd be wasting
she'd be wasting
we'd be wasting
you'd be wasting
they'd be wasting	I should've wasted
you should've wasted
she should've wasted
we should've wasted
you should've wasted
they should've wasted	I should've been wasting
you should've been wasting
she should've been wasting
we should've been wasting
you should've been wasting
they should've been wasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't waste
you shouldn't waste
she shouldn't waste
we shouldn't waste
you shouldn't waste
they shouldn't waste 	I shouldn't be wasting
you shouldn't be wasting
she shouldn't be wasting
we shouldn't be wasting
you shouldn't be wasting
they shouldn't be wasting	I shouldn't have wasted
you shouldn't have wasted
she shouldn't have wasted
we shouldn't have wasted
you shouldn't have wasted
they shouldn't have wasted	I shouldn't have been wasting
you shouldn't have been wasting
she shouldn't have been wasting
we shouldn't have been wasting
you shouldn't have been wasting
they shouldn't have been wasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I waste?
should you waste?
should she waste?
should we waste?
should you waste?
should they waste? 	should I be wasting?
should you be wasting?
should she be wasting?
should we be wasting?
should you be wasting?
should they be wasting? 	should I have wasted?
should you have wasted?
should she have wasted?
should we have wasted?
should you have wasted?
should they have wasted? 	should I have been wasting?
should you have been wasting?
should she have been wasting?
should we have been wasting?
should you have been wasting?
should they have been wasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I waste?
shouldn't you waste?
shouldn't she waste?
shouldn't we waste?
shouldn't you waste?
shouldn't they waste? 	shouldn't I be wasting?
shouldn't you be wasting?
shouldn't she be wasting?
shouldn't we be wasting?
shouldn't you be wasting?
shouldn't they be wasting? 	shouldn't I have wasted?
shouldn't you have wasted?
shouldn't she have wasted?
shouldn't we have wasted?
shouldn't you have wasted?
shouldn't they have wasted? 	shouldn't I have been wasting?
shouldn't you have been wasting?
shouldn't she have been wasting?
shouldn't we have been wasting?
shouldn't you have been wasting?
shouldn't they have been wasting?