should fertilize
Regular verb: fertilize - fertilized- fertilized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd fertilize
you'd fertilize
he'd fertilize
we'd fertilize
you'd fertilize
they'd fertilize 	I'd be fertilizing
you'd be fertilizing
he'd be fertilizing
we'd be fertilizing
you'd be fertilizing
they'd be fertilizing	I should've fertilized
you should've fertilized
he 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
he 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
he 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
he 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
he 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
he 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 he fertilize?
should we fertilize?
should you fertilize?
should they fertilize? 	should I be fertilizing?
should you be fertilizing?
should he be fertilizing?
should we be fertilizing?
should you be fertilizing?
should they be fertilizing? 	should I have fertilized?
should you have fertilized?
should he 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 he 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 he 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 he 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 he 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 he have been fertilizing?
shouldn't we have been fertilizing?
shouldn't you have been fertilizing?
shouldn't they have been fertilizing?