English verb conjugation
SHOULD REPLY

Regular verb: reply - replied - replied

Affirmation

Simple form	V-ing form
I'd reply you'd reply she'd reply we'd reply you'd reply they'd reply	I'd be replying you'd be replying she'd be replying we'd be replying you'd be replying they'd be replying
Perfect	V-ing perfect
I should've replied you should've replied she should've replied we should've replied you should've replied they should've replied	I should've been replying you should've been replying she should've been replying we should've been replying you should've been replying they should've been replying

Negation

Simple form	V-ing form
I shouldn't reply you shouldn't reply she shouldn't reply we shouldn't reply you shouldn't reply they shouldn't reply	I shouldn't be replying you shouldn't be replying she shouldn't be replying we shouldn't be replying you shouldn't be replying they shouldn't be replying
Perfect	V-ing perfect
I shouldn't have replied you shouldn't have replied she shouldn't have replied we shouldn't have replied you shouldn't have replied they shouldn't have replied	I shouldn't have been replying you shouldn't have been replying she shouldn't have been replying we shouldn't have been replying you shouldn't have been replying they shouldn't have been replying

Interrogative form

Simple form	V-ing form
should I reply? should you reply? should she reply? should we reply? should you reply? should they reply?	should I be replying? should you be replying? should she be replying? should we be replying? should you be replying? should they be replying?
Perfect	V-ing perfect
should I have replied? should you have replied? should she have replied? should we have replied? should you have replied? should they have replied?	should I have been replying? should you have been replying? should she have been replying? should we have been replying? should you have been replying? should they have been replying?

Interro-negative form

Simple form	V-ing form
shouldn't I reply? shouldn't you reply? shouldn't she reply? shouldn't we reply? shouldn't you reply? shouldn't they reply?	shouldn't I be replying? shouldn't you be replying? shouldn't she be replying? shouldn't we be replying? shouldn't you be replying? shouldn't they be replying?
Perfect	V-ing perfect
shouldn't I have replied? shouldn't you have replied? shouldn't she have replied? shouldn't we have replied? shouldn't you have replied? shouldn't they have replied?	shouldn't I have been replying? shouldn't you have been replying? shouldn't she have been replying? shouldn't we have been replying? shouldn't you have been replying? shouldn't they have been replying?