English verb conjugation
MUST ABUSE

Regular verb: abuse - abused - abused

Affirmation

Simple form	V-ing form
I must abuse you must abuse he must abuse we must abuse you must abuse they must abuse	I must be abusing you must be abusing he must be abusing we must be abusing you must be abusing they must be abusing
Perfect	V-ing perfect
I must have abused you must have abused he must have abused we must have abused you must have abused they must have abused	I must have been abusing you must have been abusing he must have been abusing we must have been abusing you must have been abusing they must have been abusing

Negation

Simple form	V-ing form
I mustn't abuse you mustn't abuse he mustn't abuse we mustn't abuse you mustn't abuse they mustn't abuse	I mustn't be abusing you mustn't be abusing he mustn't be abusing we mustn't be abusing you mustn't be abusing they mustn't be abusing
Perfect	V-ing perfect
I mustn't have abused you mustn't have abused he mustn't have abused we mustn't have abused you mustn't have abused they mustn't have abused	I mustn't have been abusing you mustn't have been abusing he mustn't have been abusing we mustn't have been abusing you mustn't have been abusing they mustn't have been abusing

Interrogative form

Simple form	V-ing form
must I abuse? must you abuse? must he abuse? must we abuse? must you abuse? must they abuse?	must I be abusing? must you be abusing? must he be abusing? must we be abusing? must you be abusing? must they be abusing?
Perfect	V-ing perfect
must I have abused? must you have abused? must he have abused? must we have abused? must you have abused? must they have abused?	must I have been abusing? must you have been abusing? must he have been abusing? must we have been abusing? must you have been abusing? must they have been abusing?

Interro-negative form

Simple form	V-ing form
mustn't I abuse? mustn't you abuse? mustn't he abuse? mustn't we abuse? mustn't you abuse? mustn't they abuse?	mustn't I be abusing? mustn't you be abusing? mustn't he be abusing? mustn't we be abusing? mustn't you be abusing? mustn't they be abusing?
Perfect	V-ing perfect
mustn't I have abused? mustn't you have abused? mustn't he have abused? mustn't we have abused? mustn't you have abused? mustn't they have abused?	mustn't I have been abusing? mustn't you have been abusing? mustn't he have been abusing? mustn't we have been abusing? mustn't you have been abusing? mustn't they have been abusing?