could predate
Verbo regular: predate - predated- predated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could predate
you could predate
she could predate
we could predate
you could predate
they could predate 	I could be predating
you could be predating
she could be predating
we could be predating
you could be predating
they could be predating	I could have predated
you could have predated
she could have predated
we could have predated
you could have predated
they could have predated	I could have been predating
you could have been predating
she could have been predating
we could have been predating
you could have been predating
they could have been predating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not predate
you could not predate
she could not predate
we could not predate
you could not predate
they could not predate 	I could not be predating
you could not be predating
she could not be predating
we could not be predating
you could not be predating
they could not be predating	I could not have predated
you could not have predated
she could not have predated
we could not have predated
you could not have predated
they could not have predated	I could not have been predating
you could not have been predating
she could not have been predating
we could not have been predating
you could not have been predating
they could not have been predating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I predate?
could you predate?
could she predate?
could we predate?
could you predate?
could they predate? 	could I be predating?
could you be predating?
could she be predating?
could we be predating?
could you be predating?
could they be predating? 	could I have predated?
could you have predated?
could she have predated?
could we have predated?
could you have predated?
could they have predated? 	could I have been predating?
could you have been predating?
could she have been predating?
could we have been predating?
could you have been predating?
could they have been predating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not predate?
could you not predate?
could she not predate?
could we not predate?
could you not predate?
could they not predate? 	could I not be predating?
could you not be predating?
could she not be predating?
could we not be predating?
could you not be predating?
could they not be predating? 	could I not have predated?
could you not have predated?
could she not have predated?
could we not have predated?
could you not have predated?
could they not have predated? 	could I not have been predating?
could you not have been predating?
could she not have been predating?
could we not have been predating?
could you not have been predating?
could they not have been predating?