could precertify
Verbo regolare: precertify - precertified- precertified

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could precertify
you could precertify
she could precertify
we could precertify
you could precertify
they could precertify 	I could be precertifying
you could be precertifying
she could be precertifying
we could be precertifying
you could be precertifying
they could be precertifying	I could have precertified
you could have precertified
she 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
she could have been precertifying
we could have been precertifying
you could have been precertifying
they could have been precertifying	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not precertify
you could not precertify
she 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
she could not be precertifying
we could not be precertifying
you could not be precertifying
they could not be precertifying	I could not have precertified
you could not have precertified
she 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
she 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 semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I precertify?
could you precertify?
could she precertify?
could we precertify?
could you precertify?
could they precertify? 	could I be precertifying?
could you be precertifying?
could she be precertifying?
could we be precertifying?
could you be precertifying?
could they be precertifying? 	could I have precertified?
could you have precertified?
could she 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 she have been precertifying?
could we have been precertifying?
could you have been precertifying?
could they have been precertifying? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not precertify?
could you not precertify?
could she 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 she not be precertifying?
could we not be precertifying?
could you not be precertifying?
could they not be precertifying? 	could I not have precertified?
could you not have precertified?
could she 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 she not have been precertifying?
could we not have been precertifying?
could you not have been precertifying?
could they not have been precertifying?