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