I may precertify you may precertify he may precertify we may precertify you may precertify they may precertify
Forme en V-ing
I may be precertifying you may be precertifying he may be precertifying we may be precertifying you may be precertifying they may be precertifying
Perfect
I may have precertified you may have precertified he may have precertified we may have precertified you may have precertified they may have precertified
Perfect en V-ing
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
I may not precertify you may not precertify he may not precertify we may not precertify you may not precertify they may not precertify
Forme en V-ing
I may not be precertifying you may not be precertifying he may not be precertifying we may not be precertifying you may not be precertifying they may not be precertifying
Perfect
I may not have precertified you may not have precertified he may not have precertified we may not have precertified you may not have precertified they may not have precertified
Perfect en V-ing
I may not have been precertifying you may not have been precertifying he may not have been precertifying we may not have been precertifying you may not have been precertifying they may not have been precertifying
Forme interrogative
Forme simple
may I precertify? may you precertify? may he precertify? may we precertify? may you precertify? may they precertify?
Forme en V-ing
may I be precertifying? may you be precertifying? may he be precertifying? may we be precertifying? may you be precertifying? may they be precertifying?
Perfect
may I have precertified? may you have precertified? may he have precertified? may we have precertified? may you have precertified? may they have precertified?
Perfect en V-ing
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
may I not precertify? may you not precertify? may he not precertify? may we not precertify? may you not precertify? may they not precertify?
Forme en V-ing
may I not be precertifying? may you not be precertifying? may he not be precertifying? may we not be precertifying? may you not be precertifying? may they not be precertifying?
Perfect
may I not have precertified? may you not have precertified? may he not have precertified? may we not have precertified? may you not have precertified? may they not have precertified?
Perfect en V-ing
may I not have been precertifying? may you not have been precertifying? may he not have been precertifying? may we not have been precertifying? may you not have been precertifying? may they not have been precertifying?