could muscle
Verbo regular: muscle - muscled- muscled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could muscle
you could muscle
he could muscle
we could muscle
you could muscle
they could muscle 	I could be muscling
you could be muscling
he could be muscling
we could be muscling
you could be muscling
they could be muscling	I could have muscled
you could have muscled
he could have muscled
we could have muscled
you could have muscled
they could have muscled	I could have been muscling
you could have been muscling
he could have been muscling
we could have been muscling
you could have been muscling
they could have been muscling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not muscle
you could not muscle
he could not muscle
we could not muscle
you could not muscle
they could not muscle 	I could not be muscling
you could not be muscling
he could not be muscling
we could not be muscling
you could not be muscling
they could not be muscling	I could not have muscled
you could not have muscled
he could not have muscled
we could not have muscled
you could not have muscled
they could not have muscled	I could not have been muscling
you could not have been muscling
he could not have been muscling
we could not have been muscling
you could not have been muscling
they could not have been muscling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I muscle?
could you muscle?
could he muscle?
could we muscle?
could you muscle?
could they muscle? 	could I be muscling?
could you be muscling?
could he be muscling?
could we be muscling?
could you be muscling?
could they be muscling? 	could I have muscled?
could you have muscled?
could he have muscled?
could we have muscled?
could you have muscled?
could they have muscled? 	could I have been muscling?
could you have been muscling?
could he have been muscling?
could we have been muscling?
could you have been muscling?
could they have been muscling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not muscle?
could you not muscle?
could he not muscle?
could we not muscle?
could you not muscle?
could they not muscle? 	could I not be muscling?
could you not be muscling?
could he not be muscling?
could we not be muscling?
could you not be muscling?
could they not be muscling? 	could I not have muscled?
could you not have muscled?
could he not have muscled?
could we not have muscled?
could you not have muscled?
could they not have muscled? 	could I not have been muscling?
could you not have been muscling?
could he not have been muscling?
could we not have been muscling?
could you not have been muscling?
could they not have been muscling?