English verb conjugation
COULD PHOTOSENSITISE

Regular verb: photosensitise - photosensitised - photosensitised

Affirmation

Simple form	V-ing form
I could photosensitise you could photosensitise he could photosensitise we could photosensitise you could photosensitise they could photosensitise	I could be photosensitising you could be photosensitising he could be photosensitising we could be photosensitising you could be photosensitising they could be photosensitising
Perfect	V-ing perfect
I could have photosensitised you could have photosensitised he could have photosensitised we could have photosensitised you could have photosensitised they could have photosensitised	I could have been photosensitising you could have been photosensitising he could have been photosensitising we could have been photosensitising you could have been photosensitising they could have been photosensitising

Negation

Simple form	V-ing form
I could not photosensitise you could not photosensitise he could not photosensitise we could not photosensitise you could not photosensitise they could not photosensitise	I could not be photosensitising you could not be photosensitising he could not be photosensitising we could not be photosensitising you could not be photosensitising they could not be photosensitising
Perfect	V-ing perfect
I could not have photosensitised you could not have photosensitised he could not have photosensitised we could not have photosensitised you could not have photosensitised they could not have photosensitised	I could not have been photosensitising you could not have been photosensitising he 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	V-ing form
could I photosensitise? could you photosensitise? could he photosensitise? could we photosensitise? could you photosensitise? could they photosensitise?	could I be photosensitising? could you be photosensitising? could he be photosensitising? could we be photosensitising? could you be photosensitising? could they be photosensitising?
Perfect	V-ing perfect
could I have photosensitised? could you have photosensitised? could he have photosensitised? could we have photosensitised? could you have photosensitised? could they have photosensitised?	could I have been photosensitising? could you have been photosensitising? could he have been photosensitising? could we have been photosensitising? could you have been photosensitising? could they have been photosensitising?

Interro-negative form

Simple form	V-ing form
could I not photosensitise? could you not photosensitise? could he not photosensitise? could we not photosensitise? could you not photosensitise? could they not photosensitise?	could I not be photosensitising? could you not be photosensitising? could he not be photosensitising? could we not be photosensitising? could you not be photosensitising? could they not be photosensitising?
Perfect	V-ing perfect
could I not have photosensitised? could you not have photosensitised? could he not have photosensitised? could we not have photosensitised? could you not have photosensitised? could they not have photosensitised?	could I not have been photosensitising? could you not have been photosensitising? could he not have been photosensitising? could we not have been photosensitising? could you not have been photosensitising? could they not have been photosensitising?