should fertilize
Regular verb: fertilize - fertilized- fertilized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd fertilize
you'd fertilize
she'd fertilize
we'd fertilize
you'd fertilize
they'd fertilize 	I'd be fertilizing
you'd be fertilizing
she'd be fertilizing
we'd be fertilizing
you'd be fertilizing
they'd be fertilizing	I should've fertilized
you should've fertilized
she should've fertilized
we should've fertilized
you should've fertilized
they should've fertilized	I should've been fertilizing
you should've been fertilizing
she should've been fertilizing
we should've been fertilizing
you should've been fertilizing
they should've been fertilizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't fertilize
you shouldn't fertilize
she shouldn't fertilize
we shouldn't fertilize
you shouldn't fertilize
they shouldn't fertilize 	I shouldn't be fertilizing
you shouldn't be fertilizing
she shouldn't be fertilizing
we shouldn't be fertilizing
you shouldn't be fertilizing
they shouldn't be fertilizing	I shouldn't have fertilized
you shouldn't have fertilized
she shouldn't have fertilized
we shouldn't have fertilized
you shouldn't have fertilized
they shouldn't have fertilized	I shouldn't have been fertilizing
you shouldn't have been fertilizing
she shouldn't have been fertilizing
we shouldn't have been fertilizing
you shouldn't have been fertilizing
they shouldn't have been fertilizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I fertilize?
should you fertilize?
should she fertilize?
should we fertilize?
should you fertilize?
should they fertilize? 	should I be fertilizing?
should you be fertilizing?
should she be fertilizing?
should we be fertilizing?
should you be fertilizing?
should they be fertilizing? 	should I have fertilized?
should you have fertilized?
should she have fertilized?
should we have fertilized?
should you have fertilized?
should they have fertilized? 	should I have been fertilizing?
should you have been fertilizing?
should she have been fertilizing?
should we have been fertilizing?
should you have been fertilizing?
should they have been fertilizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I fertilize?
shouldn't you fertilize?
shouldn't she fertilize?
shouldn't we fertilize?
shouldn't you fertilize?
shouldn't they fertilize? 	shouldn't I be fertilizing?
shouldn't you be fertilizing?
shouldn't she be fertilizing?
shouldn't we be fertilizing?
shouldn't you be fertilizing?
shouldn't they be fertilizing? 	shouldn't I have fertilized?
shouldn't you have fertilized?
shouldn't she have fertilized?
shouldn't we have fertilized?
shouldn't you have fertilized?
shouldn't they have fertilized? 	shouldn't I have been fertilizing?
shouldn't you have been fertilizing?
shouldn't she have been fertilizing?
shouldn't we have been fertilizing?
shouldn't you have been fertilizing?
shouldn't they have been fertilizing?