Coniugazione del verbo inglese
CAN PRECERTIFY

Verbo regolare: precertify - precertified - precertified

Affermazione

Forma semplice	Forma con V-ing
I can precertify you can precertify he can precertify we can precertify you can precertify they can precertify	I can be precertifying you can be precertifying he can be precertifying we can be precertifying you can be precertifying they can be precertifying
Perfetto	Perfetto con V-ing
I can have precertified you can have precertified he can have precertified we can have precertified you can have precertified they can have precertified	I can have been precertifying you can have been precertifying he can have been precertifying we can have been precertifying you can have been precertifying they can have been precertifying

Negazione

Forma semplice	Forma con V-ing
I cannot precertify you cannot precertify he cannot precertify we cannot precertify you cannot precertify they cannot precertify	I cannot be precertifying you cannot be precertifying he cannot be precertifying we cannot be precertifying you cannot be precertifying they cannot be precertifying
Perfetto	Perfetto con V-ing
I cannot have precertified you cannot have precertified he cannot have precertified we cannot have precertified you cannot have precertified they cannot have precertified	I cannot have been precertifying you cannot have been precertifying he cannot have been precertifying we cannot have been precertifying you cannot have been precertifying they cannot have been precertifying

Forma interrogativa

Forma semplice	Forma con V-ing
can I precertify? can you precertify? can he precertify? can we precertify? can you precertify? can they precertify?	can I be precertifying? can you be precertifying? can he be precertifying? can we be precertifying? can you be precertifying? can they be precertifying?
Perfetto	Perfetto con V-ing
can I have precertified? can you have precertified? can he have precertified? can we have precertified? can you have precertified? can they have precertified?	can I have been precertifying? can you have been precertifying? can he have been precertifying? can we have been precertifying? can you have been precertifying? can they have been precertifying?

Forma interro-negativa

Forma semplice	Forma con V-ing
can I not precertify? can you not precertify? can he not precertify? can we not precertify? can you not precertify? can they not precertify?	can I not be precertifying? can you not be precertifying? can he not be precertifying? can we not be precertifying? can you not be precertifying? can they not be precertifying?
Perfetto	Perfetto con V-ing
can I not have precertified? can you not have precertified? can he not have precertified? can we not have precertified? can you not have precertified? can they not have precertified?	can I not have been precertifying? can you not have been precertifying? can he not have been precertifying? can we not have been precertifying? can you not have been precertifying? can they not have been precertifying?