could marshal
Verbo regular: marshal - marshalled- marshalled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could marshal
you could marshal
he could marshal
we could marshal
you could marshal
they could marshal 	I could be marshalling
you could be marshalling
he could be marshalling
we could be marshalling
you could be marshalling
they could be marshalling	I could have marshalled
you could have marshalled
he could have marshalled
we could have marshalled
you could have marshalled
they could have marshalled	I could have been marshalling
you could have been marshalling
he could have been marshalling
we could have been marshalling
you could have been marshalling
they could have been marshalling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not marshal
you could not marshal
he could not marshal
we could not marshal
you could not marshal
they could not marshal 	I could not be marshalling
you could not be marshalling
he could not be marshalling
we could not be marshalling
you could not be marshalling
they could not be marshalling	I could not have marshalled
you could not have marshalled
he could not have marshalled
we could not have marshalled
you could not have marshalled
they could not have marshalled	I could not have been marshalling
you could not have been marshalling
he could not have been marshalling
we could not have been marshalling
you could not have been marshalling
they could not have been marshalling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I marshal?
could you marshal?
could he marshal?
could we marshal?
could you marshal?
could they marshal? 	could I be marshalling?
could you be marshalling?
could he be marshalling?
could we be marshalling?
could you be marshalling?
could they be marshalling? 	could I have marshalled?
could you have marshalled?
could he have marshalled?
could we have marshalled?
could you have marshalled?
could they have marshalled? 	could I have been marshalling?
could you have been marshalling?
could he have been marshalling?
could we have been marshalling?
could you have been marshalling?
could they have been marshalling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not marshal?
could you not marshal?
could he not marshal?
could we not marshal?
could you not marshal?
could they not marshal? 	could I not be marshalling?
could you not be marshalling?
could he not be marshalling?
could we not be marshalling?
could you not be marshalling?
could they not be marshalling? 	could I not have marshalled?
could you not have marshalled?
could he not have marshalled?
could we not have marshalled?
could you not have marshalled?
could they not have marshalled? 	could I not have been marshalling?
could you not have been marshalling?
could he not have been marshalling?
could we not have been marshalling?
could you not have been marshalling?
could they not have been marshalling?