should drain
Regular verb: drain - drained- drained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd drain
you'd drain
she'd drain
we'd drain
you'd drain
they'd drain 	I'd be draining
you'd be draining
she'd be draining
we'd be draining
you'd be draining
they'd be draining	I should've drained
you should've drained
she should've drained
we should've drained
you should've drained
they should've drained	I should've been draining
you should've been draining
she should've been draining
we should've been draining
you should've been draining
they should've been draining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't drain
you shouldn't drain
she shouldn't drain
we shouldn't drain
you shouldn't drain
they shouldn't drain 	I shouldn't be draining
you shouldn't be draining
she shouldn't be draining
we shouldn't be draining
you shouldn't be draining
they shouldn't be draining	I shouldn't have drained
you shouldn't have drained
she shouldn't have drained
we shouldn't have drained
you shouldn't have drained
they shouldn't have drained	I shouldn't have been draining
you shouldn't have been draining
she shouldn't have been draining
we shouldn't have been draining
you shouldn't have been draining
they shouldn't have been draining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I drain?
should you drain?
should she drain?
should we drain?
should you drain?
should they drain? 	should I be draining?
should you be draining?
should she be draining?
should we be draining?
should you be draining?
should they be draining? 	should I have drained?
should you have drained?
should she have drained?
should we have drained?
should you have drained?
should they have drained? 	should I have been draining?
should you have been draining?
should she have been draining?
should we have been draining?
should you have been draining?
should they have been draining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I drain?
shouldn't you drain?
shouldn't she drain?
shouldn't we drain?
shouldn't you drain?
shouldn't they drain? 	shouldn't I be draining?
shouldn't you be draining?
shouldn't she be draining?
shouldn't we be draining?
shouldn't you be draining?
shouldn't they be draining? 	shouldn't I have drained?
shouldn't you have drained?
shouldn't she have drained?
shouldn't we have drained?
shouldn't you have drained?
shouldn't they have drained? 	shouldn't I have been draining?
shouldn't you have been draining?
shouldn't she have been draining?
shouldn't we have been draining?
shouldn't you have been draining?
shouldn't they have been draining?