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