could sequence
Verbo regular: sequence - sequenced- sequenced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could sequence
you could sequence
she could sequence
we could sequence
you could sequence
they could sequence 	I could be sequencing
you could be sequencing
she could be sequencing
we could be sequencing
you could be sequencing
they could be sequencing	I could have sequenced
you could have sequenced
she 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
she could have been sequencing
we could have been sequencing
you could have been sequencing
they could have been sequencing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't sequence
you couldn't sequence
she couldn't sequence
we couldn't sequence
you couldn't sequence
they couldn't sequence 	I couldn't be sequencing
you couldn't be sequencing
she couldn't be sequencing
we couldn't be sequencing
you couldn't be sequencing
they couldn't be sequencing	I couldn't have sequenced
you couldn't have sequenced
she couldn't have sequenced
we couldn't have sequenced
you couldn't have sequenced
they couldn't have sequenced	I couldn't have been sequencing
you couldn't have been sequencing
she couldn't have been sequencing
we couldn't have been sequencing
you couldn't have been sequencing
they couldn't have been sequencing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I sequence?
could you sequence?
could she sequence?
could we sequence?
could you sequence?
could they sequence? 	could I be sequencing?
could you be sequencing?
could she be sequencing?
could we be sequencing?
could you be sequencing?
could they be sequencing? 	could I have sequenced?
could you have sequenced?
could she 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 she have been sequencing?
could we have been sequencing?
could you have been sequencing?
could they have been sequencing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I sequence?
couldn't you sequence?
couldn't she sequence?
couldn't we sequence?
couldn't you sequence?
couldn't they sequence? 	couldn't I be sequencing?
couldn't you be sequencing?
couldn't she be sequencing?
couldn't we be sequencing?
couldn't you be sequencing?
couldn't they be sequencing? 	couldn't I have sequenced?
couldn't you have sequenced?
couldn't she have sequenced?
couldn't we have sequenced?
couldn't you have sequenced?
couldn't they have sequenced? 	couldn't I have been sequencing?
couldn't you have been sequencing?
couldn't she have been sequencing?
couldn't we have been sequencing?
couldn't you have been sequencing?
couldn't they have been sequencing?