must incubate
Verbe régulier : incubate - incubated- incubated
Traduction française : couver - être en incubation 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must incubate
you must incubate
he must incubate
we must incubate
you must incubate
they must incubate 	I must be incubating
you must be incubating
he must be incubating
we must be incubating
you must be incubating
they must be incubating	I must have incubated
you must have incubated
he must have incubated
we must have incubated
you must have incubated
they must have incubated	I must have been incubating
you must have been incubating
he must have been incubating
we must have been incubating
you must have been incubating
they must have been incubating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't incubate
you mustn't incubate
he mustn't incubate
we mustn't incubate
you mustn't incubate
they mustn't incubate 	I mustn't be incubating
you mustn't be incubating
he mustn't be incubating
we mustn't be incubating
you mustn't be incubating
they mustn't be incubating	I mustn't have incubated
you mustn't have incubated
he mustn't have incubated
we mustn't have incubated
you mustn't have incubated
they mustn't have incubated	I mustn't have been incubating
you mustn't have been incubating
he mustn't have been incubating
we mustn't have been incubating
you mustn't have been incubating
they mustn't have been incubating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I incubate?
must you incubate?
must he incubate?
must we incubate?
must you incubate?
must they incubate? 	must I be incubating?
must you be incubating?
must he be incubating?
must we be incubating?
must you be incubating?
must they be incubating? 	must I have incubated?
must you have incubated?
must he have incubated?
must we have incubated?
must you have incubated?
must they have incubated? 	must I have been incubating?
must you have been incubating?
must he have been incubating?
must we have been incubating?
must you have been incubating?
must they have been incubating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I incubate?
mustn't you incubate?
mustn't he incubate?
mustn't we incubate?
mustn't you incubate?
mustn't they incubate? 	mustn't I be incubating?
mustn't you be incubating?
mustn't he be incubating?
mustn't we be incubating?
mustn't you be incubating?
mustn't they be incubating? 	mustn't I have incubated?
mustn't you have incubated?
mustn't he have incubated?
mustn't we have incubated?
mustn't you have incubated?
mustn't they have incubated? 	mustn't I have been incubating?
mustn't you have been incubating?
mustn't he have been incubating?
mustn't we have been incubating?
mustn't you have been incubating?
mustn't they have been incubating?