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 can't photosynthesize you can't photosynthesize he can't photosynthesize we can't photosynthesize you can't photosynthesize they can't photosynthesize	I can't be photosynthesizing you can't be photosynthesizing he can't be photosynthesizing we can't be photosynthesizing you can't be photosynthesizing they can't be photosynthesizing
Perfect	V-ing perfect
I can't have photosynthesized you can't have photosynthesized he can't have photosynthesized we can't have photosynthesized you can't have photosynthesized they can't have photosynthesized	I can't have been photosynthesizing you can't have been photosynthesizing he can't have been photosynthesizing we can't have been photosynthesizing you can't have been photosynthesizing they can't 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't I photosynthesize? can't you photosynthesize? can't he photosynthesize? can't we photosynthesize? can't you photosynthesize? can't they photosynthesize?	can't I be photosynthesizing? can't you be photosynthesizing? can't he be photosynthesizing? can't we be photosynthesizing? can't you be photosynthesizing? can't they be photosynthesizing?
Perfect	V-ing perfect
can't I have photosynthesized? can't you have photosynthesized? can't he have photosynthesized? can't we have photosynthesized? can't you have photosynthesized? can't they have photosynthesized?	can't I have been photosynthesizing? can't you have been photosynthesizing? can't he have been photosynthesizing? can't we have been photosynthesizing? can't you have been photosynthesizing? can't they have been photosynthesizing?