could photosensitize
Regular verb: photosensitize - photosensitized- photosensitized

Affirmation 	
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I could photosensitize
you could photosensitize
he could photosensitize
we could photosensitize
you could photosensitize
they could photosensitize 	I could be photosensitizing
you could be photosensitizing
he could be photosensitizing
we could be photosensitizing
you could be photosensitizing
they could be photosensitizing	I could have photosensitized
you could have photosensitized
he could have photosensitized
we could have photosensitized
you could have photosensitized
they could have photosensitized	I could have been photosensitizing
you could have been photosensitizing
he could have been photosensitizing
we could have been photosensitizing
you could have been photosensitizing
they could have been photosensitizing	

Negation 	
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I couldn't photosensitize
you couldn't photosensitize
he couldn't photosensitize
we couldn't photosensitize
you couldn't photosensitize
they couldn't photosensitize 	I couldn't be photosensitizing
you couldn't be photosensitizing
he couldn't be photosensitizing
we couldn't be photosensitizing
you couldn't be photosensitizing
they couldn't be photosensitizing	I couldn't have photosensitized
you couldn't have photosensitized
he couldn't have photosensitized
we couldn't have photosensitized
you couldn't have photosensitized
they couldn't have photosensitized	I couldn't have been photosensitizing
you couldn't have been photosensitizing
he couldn't have been photosensitizing
we couldn't have been photosensitizing
you couldn't have been photosensitizing
they couldn't have been photosensitizing	

Interrogative form 	
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could I photosensitize?
could you photosensitize?
could he photosensitize?
could we photosensitize?
could you photosensitize?
could they photosensitize? 	could I be photosensitizing?
could you be photosensitizing?
could he be photosensitizing?
could we be photosensitizing?
could you be photosensitizing?
could they be photosensitizing? 	could I have photosensitized?
could you have photosensitized?
could he have photosensitized?
could we have photosensitized?
could you have photosensitized?
could they have photosensitized? 	could I have been photosensitizing?
could you have been photosensitizing?
could he have been photosensitizing?
could we have been photosensitizing?
could you have been photosensitizing?
could they have been photosensitizing? 	

Interro-negative form 	
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couldn't I photosensitize?
couldn't you photosensitize?
couldn't he photosensitize?
couldn't we photosensitize?
couldn't you photosensitize?
couldn't they photosensitize? 	couldn't I be photosensitizing?
couldn't you be photosensitizing?
couldn't he be photosensitizing?
couldn't we be photosensitizing?
couldn't you be photosensitizing?
couldn't they be photosensitizing? 	couldn't I have photosensitized?
couldn't you have photosensitized?
couldn't he have photosensitized?
couldn't we have photosensitized?
couldn't you have photosensitized?
couldn't they have photosensitized? 	couldn't I have been photosensitizing?
couldn't you have been photosensitizing?
couldn't he have been photosensitizing?
couldn't we have been photosensitizing?
couldn't you have been photosensitizing?
couldn't they have been photosensitizing?