Conjugación del verbo inglés
COULD PRECERTIFY

Verbo regular: precertify - precertified - precertified

Afirmación

Forma simple	Forma con V-ing
I could precertify you could precertify he could precertify we could precertify you could precertify they could precertify	I could be precertifying you could be precertifying he could be precertifying we could be precertifying you could be precertifying they could be precertifying
Perfecto	Perfecto con V-ing
I could have precertified you could have precertified he could have precertified we could have precertified you could have precertified they could have precertified	I could have been precertifying you could have been precertifying he could have been precertifying we could have been precertifying you could have been precertifying they could have been precertifying

Negación

Forma simple	Forma con V-ing
I could not precertify you could not precertify he could not precertify we could not precertify you could not precertify they could not precertify	I could not be precertifying you could not be precertifying he could not be precertifying we could not be precertifying you could not be precertifying they could not be precertifying
Perfecto	Perfecto con V-ing
I could not have precertified you could not have precertified he could not have precertified we could not have precertified you could not have precertified they could not have precertified	I could not have been precertifying you could not have been precertifying he could not have been precertifying we could not have been precertifying you could not have been precertifying they could not have been precertifying

Forma interrogativa

Forma simple	Forma con V-ing
could I precertify? could you precertify? could he precertify? could we precertify? could you precertify? could they precertify?	could I be precertifying? could you be precertifying? could he be precertifying? could we be precertifying? could you be precertifying? could they be precertifying?
Perfecto	Perfecto con V-ing
could I have precertified? could you have precertified? could he have precertified? could we have precertified? could you have precertified? could they have precertified?	could I have been precertifying? could you have been precertifying? could he have been precertifying? could we have been precertifying? could you have been precertifying? could they have been precertifying?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not precertify? could you not precertify? could he not precertify? could we not precertify? could you not precertify? could they not precertify?	could I not be precertifying? could you not be precertifying? could he not be precertifying? could we not be precertifying? could you not be precertifying? could they not be precertifying?
Perfecto	Perfecto con V-ing
could I not have precertified? could you not have precertified? could he not have precertified? could we not have precertified? could you not have precertified? could they not have precertified?	could I not have been precertifying? could you not have been precertifying? could he not have been precertifying? could we not have been precertifying? could you not have been precertifying? could they not have been precertifying?