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