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