I must photosensitise you must photosensitise she must photosensitise we must photosensitise you must photosensitise they must photosensitise
V-ing form
I must be photosensitising you must be photosensitising she must be photosensitising we must be photosensitising you must be photosensitising they must be photosensitising
Perfect
I must have photosensitised you must have photosensitised she 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 she must have been photosensitising we must have been photosensitising you must have been photosensitising they must have been photosensitising
Negation
Simple form
I mustn't photosensitise you mustn't photosensitise she mustn't photosensitise we mustn't photosensitise you mustn't photosensitise they mustn't photosensitise
V-ing form
I mustn't be photosensitising you mustn't be photosensitising she mustn't be photosensitising we mustn't be photosensitising you mustn't be photosensitising they mustn't be photosensitising
Perfect
I mustn't have photosensitised you mustn't have photosensitised she mustn't have photosensitised we mustn't have photosensitised you mustn't have photosensitised they mustn't have photosensitised
V-ing perfect
I mustn't have been photosensitising you mustn't have been photosensitising she mustn't have been photosensitising we mustn't have been photosensitising you mustn't have been photosensitising they mustn't have been photosensitising
Interrogative form
Simple form
must I photosensitise? must you photosensitise? must she photosensitise? must we photosensitise? must you photosensitise? must they photosensitise?
V-ing form
must I be photosensitising? must you be photosensitising? must she be photosensitising? must we be photosensitising? must you be photosensitising? must they be photosensitising?
Perfect
must I have photosensitised? must you have photosensitised? must she 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 she have been photosensitising? must we have been photosensitising? must you have been photosensitising? must they have been photosensitising?
Interro-negative form
Simple form
mustn't I photosensitise? mustn't you photosensitise? mustn't she photosensitise? mustn't we photosensitise? mustn't you photosensitise? mustn't they photosensitise?
V-ing form
mustn't I be photosensitising? mustn't you be photosensitising? mustn't she be photosensitising? mustn't we be photosensitising? mustn't you be photosensitising? mustn't they be photosensitising?
Perfect
mustn't I have photosensitised? mustn't you have photosensitised? mustn't she have photosensitised? mustn't we have photosensitised? mustn't you have photosensitised? mustn't they have photosensitised?
V-ing perfect
mustn't I have been photosensitising? mustn't you have been photosensitising? mustn't she have been photosensitising? mustn't we have been photosensitising? mustn't you have been photosensitising? mustn't they have been photosensitising?