should lurk
Regular verb: lurk - lurked- lurked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd lurk
you'd lurk
she'd lurk
we'd lurk
you'd lurk
they'd lurk 	I'd be lurking
you'd be lurking
she'd be lurking
we'd be lurking
you'd be lurking
they'd be lurking	I should've lurked
you should've lurked
she should've lurked
we should've lurked
you should've lurked
they should've lurked	I should've been lurking
you should've been lurking
she should've been lurking
we should've been lurking
you should've been lurking
they should've been lurking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't lurk
you shouldn't lurk
she shouldn't lurk
we shouldn't lurk
you shouldn't lurk
they shouldn't lurk 	I shouldn't be lurking
you shouldn't be lurking
she shouldn't be lurking
we shouldn't be lurking
you shouldn't be lurking
they shouldn't be lurking	I shouldn't have lurked
you shouldn't have lurked
she shouldn't have lurked
we shouldn't have lurked
you shouldn't have lurked
they shouldn't have lurked	I shouldn't have been lurking
you shouldn't have been lurking
she shouldn't have been lurking
we shouldn't have been lurking
you shouldn't have been lurking
they shouldn't have been lurking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I lurk?
should you lurk?
should she lurk?
should we lurk?
should you lurk?
should they lurk? 	should I be lurking?
should you be lurking?
should she be lurking?
should we be lurking?
should you be lurking?
should they be lurking? 	should I have lurked?
should you have lurked?
should she have lurked?
should we have lurked?
should you have lurked?
should they have lurked? 	should I have been lurking?
should you have been lurking?
should she have been lurking?
should we have been lurking?
should you have been lurking?
should they have been lurking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I lurk?
shouldn't you lurk?
shouldn't she lurk?
shouldn't we lurk?
shouldn't you lurk?
shouldn't they lurk? 	shouldn't I be lurking?
shouldn't you be lurking?
shouldn't she be lurking?
shouldn't we be lurking?
shouldn't you be lurking?
shouldn't they be lurking? 	shouldn't I have lurked?
shouldn't you have lurked?
shouldn't she have lurked?
shouldn't we have lurked?
shouldn't you have lurked?
shouldn't they have lurked? 	shouldn't I have been lurking?
shouldn't you have been lurking?
shouldn't she have been lurking?
shouldn't we have been lurking?
shouldn't you have been lurking?
shouldn't they have been lurking?