could sequence
Verbo regular: sequence - sequenced- sequenced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could sequence
you could sequence
he could sequence
we could sequence
you could sequence
they could sequence 	I could be sequencing
you could be sequencing
he could be sequencing
we could be sequencing
you could be sequencing
they could be sequencing	I could have sequenced
you could have sequenced
he could have sequenced
we could have sequenced
you could have sequenced
they could have sequenced	I could have been sequencing
you could have been sequencing
he could have been sequencing
we could have been sequencing
you could have been sequencing
they could have been sequencing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not sequence
you could not sequence
he could not sequence
we could not sequence
you could not sequence
they could not sequence 	I could not be sequencing
you could not be sequencing
he could not be sequencing
we could not be sequencing
you could not be sequencing
they could not be sequencing	I could not have sequenced
you could not have sequenced
he could not have sequenced
we could not have sequenced
you could not have sequenced
they could not have sequenced	I could not have been sequencing
you could not have been sequencing
he could not have been sequencing
we could not have been sequencing
you could not have been sequencing
they could not have been sequencing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I sequence?
could you sequence?
could he sequence?
could we sequence?
could you sequence?
could they sequence? 	could I be sequencing?
could you be sequencing?
could he be sequencing?
could we be sequencing?
could you be sequencing?
could they be sequencing? 	could I have sequenced?
could you have sequenced?
could he have sequenced?
could we have sequenced?
could you have sequenced?
could they have sequenced? 	could I have been sequencing?
could you have been sequencing?
could he have been sequencing?
could we have been sequencing?
could you have been sequencing?
could they have been sequencing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not sequence?
could you not sequence?
could he not sequence?
could we not sequence?
could you not sequence?
could they not sequence? 	could I not be sequencing?
could you not be sequencing?
could he not be sequencing?
could we not be sequencing?
could you not be sequencing?
could they not be sequencing? 	could I not have sequenced?
could you not have sequenced?
could he not have sequenced?
could we not have sequenced?
could you not have sequenced?
could they not have sequenced? 	could I not have been sequencing?
could you not have been sequencing?
could he not have been sequencing?
could we not have been sequencing?
could you not have been sequencing?
could they not have been sequencing?