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