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