I must misthink you must misthink he must misthink we must misthink you must misthink they must misthink
V-ing form
I must be misthinking you must be misthinking he must be misthinking we must be misthinking you must be misthinking they must be misthinking
Perfect
I must have misthought you must have misthought he must have misthought we must have misthought you must have misthought they must have misthought
V-ing perfect
I must have been misthinking you must have been misthinking he must have been misthinking we must have been misthinking you must have been misthinking they must have been misthinking
Negation
Simple form
I mustn't misthink you mustn't misthink he mustn't misthink we mustn't misthink you mustn't misthink they mustn't misthink
V-ing form
I mustn't be misthinking you mustn't be misthinking he mustn't be misthinking we mustn't be misthinking you mustn't be misthinking they mustn't be misthinking
Perfect
I mustn't have misthought you mustn't have misthought he mustn't have misthought we mustn't have misthought you mustn't have misthought they mustn't have misthought
V-ing perfect
I mustn't have been misthinking you mustn't have been misthinking he mustn't have been misthinking we mustn't have been misthinking you mustn't have been misthinking they mustn't have been misthinking
Interrogative form
Simple form
must I misthink? must you misthink? must he misthink? must we misthink? must you misthink? must they misthink?
V-ing form
must I be misthinking? must you be misthinking? must he be misthinking? must we be misthinking? must you be misthinking? must they be misthinking?
Perfect
must I have misthought? must you have misthought? must he have misthought? must we have misthought? must you have misthought? must they have misthought?
V-ing perfect
must I have been misthinking? must you have been misthinking? must he have been misthinking? must we have been misthinking? must you have been misthinking? must they have been misthinking?
Interro-negative form
Simple form
mustn't I misthink? mustn't you misthink? mustn't he misthink? mustn't we misthink? mustn't you misthink? mustn't they misthink?
V-ing form
mustn't I be misthinking? mustn't you be misthinking? mustn't he be misthinking? mustn't we be misthinking? mustn't you be misthinking? mustn't they be misthinking?
Perfect
mustn't I have misthought? mustn't you have misthought? mustn't he have misthought? mustn't we have misthought? mustn't you have misthought? mustn't they have misthought?
V-ing perfect
mustn't I have been misthinking? mustn't you have been misthinking? mustn't he have been misthinking? mustn't we have been misthinking? mustn't you have been misthinking? mustn't they have been misthinking?