I could photosensitise you could photosensitise she could photosensitise we could photosensitise you could photosensitise they could photosensitise
V-ing form
I could be photosensitising you could be photosensitising she could be photosensitising we could be photosensitising you could be photosensitising they could be photosensitising
Perfect
I could have photosensitised you could have photosensitised she could have photosensitised we could have photosensitised you could have photosensitised they could have photosensitised
V-ing perfect
I could have been photosensitising you could have been photosensitising she could have been photosensitising we could have been photosensitising you could have been photosensitising they could have been photosensitising
Negation
Simple form
I could not photosensitise you could not photosensitise she could not photosensitise we could not photosensitise you could not photosensitise they could not photosensitise
V-ing form
I could not be photosensitising you could not be photosensitising she could not be photosensitising we could not be photosensitising you could not be photosensitising they could not be photosensitising
Perfect
I could not have photosensitised you could not have photosensitised she could not have photosensitised we could not have photosensitised you could not have photosensitised they could not have photosensitised
V-ing perfect
I could not have been photosensitising you could not have been photosensitising she could not have been photosensitising we could not have been photosensitising you could not have been photosensitising they could not have been photosensitising
Interrogative form
Simple form
could I photosensitise? could you photosensitise? could she photosensitise? could we photosensitise? could you photosensitise? could they photosensitise?
V-ing form
could I be photosensitising? could you be photosensitising? could she be photosensitising? could we be photosensitising? could you be photosensitising? could they be photosensitising?
Perfect
could I have photosensitised? could you have photosensitised? could she have photosensitised? could we have photosensitised? could you have photosensitised? could they have photosensitised?
V-ing perfect
could I have been photosensitising? could you have been photosensitising? could she have been photosensitising? could we have been photosensitising? could you have been photosensitising? could they have been photosensitising?
Interro-negative form
Simple form
could I not photosensitise? could you not photosensitise? could she not photosensitise? could we not photosensitise? could you not photosensitise? could they not photosensitise?
V-ing form
could I not be photosensitising? could you not be photosensitising? could she not be photosensitising? could we not be photosensitising? could you not be photosensitising? could they not be photosensitising?
Perfect
could I not have photosensitised? could you not have photosensitised? could she not have photosensitised? could we not have photosensitised? could you not have photosensitised? could they not have photosensitised?
V-ing perfect
could I not have been photosensitising? could you not have been photosensitising? could she not have been photosensitising? could we not have been photosensitising? could you not have been photosensitising? could they not have been photosensitising?