English verb conjugation
CAN PHOTOSYNTHESIZE

Regular verb: photosynthesize - photosynthesized - photosynthesized

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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