should harrow
Regular verb: harrow - harrowed- harrowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd harrow
you'd harrow
she'd harrow
we'd harrow
you'd harrow
they'd harrow 	I'd be harrowing
you'd be harrowing
she'd be harrowing
we'd be harrowing
you'd be harrowing
they'd be harrowing	I should've harrowed
you should've harrowed
she should've harrowed
we should've harrowed
you should've harrowed
they should've harrowed	I should've been harrowing
you should've been harrowing
she should've been harrowing
we should've been harrowing
you should've been harrowing
they should've been harrowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't harrow
you shouldn't harrow
she shouldn't harrow
we shouldn't harrow
you shouldn't harrow
they shouldn't harrow 	I shouldn't be harrowing
you shouldn't be harrowing
she shouldn't be harrowing
we shouldn't be harrowing
you shouldn't be harrowing
they shouldn't be harrowing	I shouldn't have harrowed
you shouldn't have harrowed
she shouldn't have harrowed
we shouldn't have harrowed
you shouldn't have harrowed
they shouldn't have harrowed	I shouldn't have been harrowing
you shouldn't have been harrowing
she shouldn't have been harrowing
we shouldn't have been harrowing
you shouldn't have been harrowing
they shouldn't have been harrowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I harrow?
should you harrow?
should she harrow?
should we harrow?
should you harrow?
should they harrow? 	should I be harrowing?
should you be harrowing?
should she be harrowing?
should we be harrowing?
should you be harrowing?
should they be harrowing? 	should I have harrowed?
should you have harrowed?
should she have harrowed?
should we have harrowed?
should you have harrowed?
should they have harrowed? 	should I have been harrowing?
should you have been harrowing?
should she have been harrowing?
should we have been harrowing?
should you have been harrowing?
should they have been harrowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I harrow?
shouldn't you harrow?
shouldn't she harrow?
shouldn't we harrow?
shouldn't you harrow?
shouldn't they harrow? 	shouldn't I be harrowing?
shouldn't you be harrowing?
shouldn't she be harrowing?
shouldn't we be harrowing?
shouldn't you be harrowing?
shouldn't they be harrowing? 	shouldn't I have harrowed?
shouldn't you have harrowed?
shouldn't she have harrowed?
shouldn't we have harrowed?
shouldn't you have harrowed?
shouldn't they have harrowed? 	shouldn't I have been harrowing?
shouldn't you have been harrowing?
shouldn't she have been harrowing?
shouldn't we have been harrowing?
shouldn't you have been harrowing?
shouldn't they have been harrowing?