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