should photosynthesize
Regular verb: photosynthesize - photosynthesized- photosynthesized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should photosynthesize
you should photosynthesize
he should photosynthesize
we should photosynthesize
you should photosynthesize
they should photosynthesize 	I should be photosynthesizing
you should be photosynthesizing
he should be photosynthesizing
we should be photosynthesizing
you should be photosynthesizing
they should be photosynthesizing	I should have photosynthesized
you should have photosynthesized
he should have photosynthesized
we should have photosynthesized
you should have photosynthesized
they should have photosynthesized	I should have been photosynthesizing
you should have been photosynthesizing
he should have been photosynthesizing
we should have been photosynthesizing
you should have been photosynthesizing
they should have been photosynthesizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not photosynthesize
you should not photosynthesize
he should not photosynthesize
we should not photosynthesize
you should not photosynthesize
they should not photosynthesize 	I should not be photosynthesizing
you should not be photosynthesizing
he should not be photosynthesizing
we should not be photosynthesizing
you should not be photosynthesizing
they should not be photosynthesizing	I should not have photosynthesized
you should not have photosynthesized
he should not have photosynthesized
we should not have photosynthesized
you should not have photosynthesized
they should not have photosynthesized	I should not have been photosynthesizing
you should not have been photosynthesizing
he should not have been photosynthesizing
we should not have been photosynthesizing
you should not have been photosynthesizing
they should not have been photosynthesizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I photosynthesize?
should you photosynthesize?
should he photosynthesize?
should we photosynthesize?
should you photosynthesize?
should they photosynthesize? 	should I be photosynthesizing?
should you be photosynthesizing?
should he be photosynthesizing?
should we be photosynthesizing?
should you be photosynthesizing?
should they be photosynthesizing? 	should I have photosynthesized?
should you have photosynthesized?
should he have photosynthesized?
should we have photosynthesized?
should you have photosynthesized?
should they have photosynthesized? 	should I have been photosynthesizing?
should you have been photosynthesizing?
should he have been photosynthesizing?
should we have been photosynthesizing?
should you have been photosynthesizing?
should they have been photosynthesizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not photosynthesize?
should you not photosynthesize?
should he not photosynthesize?
should we not photosynthesize?
should you not photosynthesize?
should they not photosynthesize? 	should I not be photosynthesizing?
should you not be photosynthesizing?
should he not be photosynthesizing?
should we not be photosynthesizing?
should you not be photosynthesizing?
should they not be photosynthesizing? 	should I not have photosynthesized?
should you not have photosynthesized?
should he not have photosynthesized?
should we not have photosynthesized?
should you not have photosynthesized?
should they not have photosynthesized? 	should I not have been photosynthesizing?
should you not have been photosynthesizing?
should he not have been photosynthesizing?
should we not have been photosynthesizing?
should you not have been photosynthesizing?
should they not have been photosynthesizing?