may catalyse
Verbe régulier : catalyse - catalysed- catalysed
Traduction française : (UK) catalyser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may catalyse
you may catalyse
he may catalyse
we may catalyse
you may catalyse
they may catalyse 	I may be catalysing
you may be catalysing
he may be catalysing
we may be catalysing
you may be catalysing
they may be catalysing	I may have catalysed
you may have catalysed
he may have catalysed
we may have catalysed
you may have catalysed
they may have catalysed	I may have been catalysing
you may have been catalysing
he may have been catalysing
we may have been catalysing
you may have been catalysing
they may have been catalysing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mayn't catalyse
you mayn't catalyse
he mayn't catalyse
we mayn't catalyse
you mayn't catalyse
they mayn't catalyse 	I mayn't be catalysing
you mayn't be catalysing
he mayn't be catalysing
we mayn't be catalysing
you mayn't be catalysing
they mayn't be catalysing	I mayn't have catalysed
you mayn't have catalysed
he mayn't have catalysed
we mayn't have catalysed
you mayn't have catalysed
they mayn't have catalysed	I mayn't have been catalysing
you mayn't have been catalysing
he mayn't have been catalysing
we mayn't have been catalysing
you mayn't have been catalysing
they mayn't have been catalysing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I catalyse?
may you catalyse?
may he catalyse?
may we catalyse?
may you catalyse?
may they catalyse? 	may I be catalysing?
may you be catalysing?
may he be catalysing?
may we be catalysing?
may you be catalysing?
may they be catalysing? 	may I have catalysed?
may you have catalysed?
may he have catalysed?
may we have catalysed?
may you have catalysed?
may they have catalysed? 	may I have been catalysing?
may you have been catalysing?
may he have been catalysing?
may we have been catalysing?
may you have been catalysing?
may they have been catalysing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mayn't I catalyse?
mayn't you catalyse?
mayn't he catalyse?
mayn't we catalyse?
mayn't you catalyse?
mayn't they catalyse? 	mayn't I be catalysing?
mayn't you be catalysing?
mayn't he be catalysing?
mayn't we be catalysing?
mayn't you be catalysing?
mayn't they be catalysing? 	mayn't I have catalysed?
mayn't you have catalysed?
mayn't he have catalysed?
mayn't we have catalysed?
mayn't you have catalysed?
mayn't they have catalysed? 	mayn't I have been catalysing?
mayn't you have been catalysing?
mayn't he have been catalysing?
mayn't we have been catalysing?
mayn't you have been catalysing?
mayn't they have been catalysing?