I must photoscan you must photoscan he must photoscan we must photoscan you must photoscan they must photoscan
V-ing form
I must be photoscaning you must be photoscaning he must be photoscaning we must be photoscaning you must be photoscaning they must be photoscaning
Perfect
I must have photoscaned you must have photoscaned he must have photoscaned we must have photoscaned you must have photoscaned they must have photoscaned
V-ing perfect
I must have been photoscaning you must have been photoscaning he must have been photoscaning we must have been photoscaning you must have been photoscaning they must have been photoscaning
Negation
Simple form
I mustn't photoscan you mustn't photoscan he mustn't photoscan we mustn't photoscan you mustn't photoscan they mustn't photoscan
V-ing form
I mustn't be photoscaning you mustn't be photoscaning he mustn't be photoscaning we mustn't be photoscaning you mustn't be photoscaning they mustn't be photoscaning
Perfect
I mustn't have photoscaned you mustn't have photoscaned he mustn't have photoscaned we mustn't have photoscaned you mustn't have photoscaned they mustn't have photoscaned
V-ing perfect
I mustn't have been photoscaning you mustn't have been photoscaning he mustn't have been photoscaning we mustn't have been photoscaning you mustn't have been photoscaning they mustn't have been photoscaning
Interrogative form
Simple form
must I photoscan? must you photoscan? must he photoscan? must we photoscan? must you photoscan? must they photoscan?
V-ing form
must I be photoscaning? must you be photoscaning? must he be photoscaning? must we be photoscaning? must you be photoscaning? must they be photoscaning?
Perfect
must I have photoscaned? must you have photoscaned? must he have photoscaned? must we have photoscaned? must you have photoscaned? must they have photoscaned?
V-ing perfect
must I have been photoscaning? must you have been photoscaning? must he have been photoscaning? must we have been photoscaning? must you have been photoscaning? must they have been photoscaning?
Interro-negative form
Simple form
mustn't I photoscan? mustn't you photoscan? mustn't he photoscan? mustn't we photoscan? mustn't you photoscan? mustn't they photoscan?
V-ing form
mustn't I be photoscaning? mustn't you be photoscaning? mustn't he be photoscaning? mustn't we be photoscaning? mustn't you be photoscaning? mustn't they be photoscaning?
Perfect
mustn't I have photoscaned? mustn't you have photoscaned? mustn't he have photoscaned? mustn't we have photoscaned? mustn't you have photoscaned? mustn't they have photoscaned?
V-ing perfect
mustn't I have been photoscaning? mustn't you have been photoscaning? mustn't he have been photoscaning? mustn't we have been photoscaning? mustn't you have been photoscaning? mustn't they have been photoscaning?