I must de-escalate you must de-escalate she must de-escalate we must de-escalate you must de-escalate they must de-escalate
V-ing form
I must be de-escalating you must be de-escalating she must be de-escalating we must be de-escalating you must be de-escalating they must be de-escalating
Perfect
I must have de-escalated you must have de-escalated she must have de-escalated we must have de-escalated you must have de-escalated they must have de-escalated
V-ing perfect
I must have been de-escalating you must have been de-escalating she must have been de-escalating we must have been de-escalating you must have been de-escalating they must have been de-escalating
Negation
Simple form
I mustn't de-escalate you mustn't de-escalate she mustn't de-escalate we mustn't de-escalate you mustn't de-escalate they mustn't de-escalate
V-ing form
I mustn't be de-escalating you mustn't be de-escalating she mustn't be de-escalating we mustn't be de-escalating you mustn't be de-escalating they mustn't be de-escalating
Perfect
I mustn't have de-escalated you mustn't have de-escalated she mustn't have de-escalated we mustn't have de-escalated you mustn't have de-escalated they mustn't have de-escalated
V-ing perfect
I mustn't have been de-escalating you mustn't have been de-escalating she mustn't have been de-escalating we mustn't have been de-escalating you mustn't have been de-escalating they mustn't have been de-escalating
Interrogative form
Simple form
must I de-escalate? must you de-escalate? must she de-escalate? must we de-escalate? must you de-escalate? must they de-escalate?
V-ing form
must I be de-escalating? must you be de-escalating? must she be de-escalating? must we be de-escalating? must you be de-escalating? must they be de-escalating?
Perfect
must I have de-escalated? must you have de-escalated? must she have de-escalated? must we have de-escalated? must you have de-escalated? must they have de-escalated?
V-ing perfect
must I have been de-escalating? must you have been de-escalating? must she have been de-escalating? must we have been de-escalating? must you have been de-escalating? must they have been de-escalating?
Interro-negative form
Simple form
mustn't I de-escalate? mustn't you de-escalate? mustn't she de-escalate? mustn't we de-escalate? mustn't you de-escalate? mustn't they de-escalate?
V-ing form
mustn't I be de-escalating? mustn't you be de-escalating? mustn't she be de-escalating? mustn't we be de-escalating? mustn't you be de-escalating? mustn't they be de-escalating?
Perfect
mustn't I have de-escalated? mustn't you have de-escalated? mustn't she have de-escalated? mustn't we have de-escalated? mustn't you have de-escalated? mustn't they have de-escalated?
V-ing perfect
mustn't I have been de-escalating? mustn't you have been de-escalating? mustn't she have been de-escalating? mustn't we have been de-escalating? mustn't you have been de-escalating? mustn't they have been de-escalating?