may precertify
Verbe régulier : precertify - precertified- precertified

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may precertify
you may precertify
he may precertify
we may precertify
you may precertify
they may precertify 	I may be precertifying
you may be precertifying
he may be precertifying
we may be precertifying
you may be precertifying
they may be precertifying	I may have precertified
you may have precertified
he may have precertified
we may have precertified
you may have precertified
they may have precertified	I may have been precertifying
you may have been precertifying
he may have been precertifying
we may have been precertifying
you may have been precertifying
they may have been precertifying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mayn't precertify
you mayn't precertify
he mayn't precertify
we mayn't precertify
you mayn't precertify
they mayn't precertify 	I mayn't be precertifying
you mayn't be precertifying
he mayn't be precertifying
we mayn't be precertifying
you mayn't be precertifying
they mayn't be precertifying	I mayn't have precertified
you mayn't have precertified
he mayn't have precertified
we mayn't have precertified
you mayn't have precertified
they mayn't have precertified	I mayn't have been precertifying
you mayn't have been precertifying
he mayn't have been precertifying
we mayn't have been precertifying
you mayn't have been precertifying
they mayn't have been precertifying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I precertify?
may you precertify?
may he precertify?
may we precertify?
may you precertify?
may they precertify? 	may I be precertifying?
may you be precertifying?
may he be precertifying?
may we be precertifying?
may you be precertifying?
may they be precertifying? 	may I have precertified?
may you have precertified?
may he have precertified?
may we have precertified?
may you have precertified?
may they have precertified? 	may I have been precertifying?
may you have been precertifying?
may he have been precertifying?
may we have been precertifying?
may you have been precertifying?
may they have been precertifying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mayn't I precertify?
mayn't you precertify?
mayn't he precertify?
mayn't we precertify?
mayn't you precertify?
mayn't they precertify? 	mayn't I be precertifying?
mayn't you be precertifying?
mayn't he be precertifying?
mayn't we be precertifying?
mayn't you be precertifying?
mayn't they be precertifying? 	mayn't I have precertified?
mayn't you have precertified?
mayn't he have precertified?
mayn't we have precertified?
mayn't you have precertified?
mayn't they have precertified? 	mayn't I have been precertifying?
mayn't you have been precertifying?
mayn't he have been precertifying?
mayn't we have been precertifying?
mayn't you have been precertifying?
mayn't they have been precertifying?