could half-mast
Verbo regular: half-mast - half-masted- half-masted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could half-mast
you could half-mast
she could half-mast
we could half-mast
you could half-mast
they could half-mast 	I could be half-masting
you could be half-masting
she could be half-masting
we could be half-masting
you could be half-masting
they could be half-masting	I could have half-masted
you could have half-masted
she could have half-masted
we could have half-masted
you could have half-masted
they could have half-masted	I could have been half-masting
you could have been half-masting
she could have been half-masting
we could have been half-masting
you could have been half-masting
they could have been half-masting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not half-mast
you could not half-mast
she could not half-mast
we could not half-mast
you could not half-mast
they could not half-mast 	I could not be half-masting
you could not be half-masting
she could not be half-masting
we could not be half-masting
you could not be half-masting
they could not be half-masting	I could not have half-masted
you could not have half-masted
she could not have half-masted
we could not have half-masted
you could not have half-masted
they could not have half-masted	I could not have been half-masting
you could not have been half-masting
she could not have been half-masting
we could not have been half-masting
you could not have been half-masting
they could not have been half-masting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I half-mast?
could you half-mast?
could she half-mast?
could we half-mast?
could you half-mast?
could they half-mast? 	could I be half-masting?
could you be half-masting?
could she be half-masting?
could we be half-masting?
could you be half-masting?
could they be half-masting? 	could I have half-masted?
could you have half-masted?
could she have half-masted?
could we have half-masted?
could you have half-masted?
could they have half-masted? 	could I have been half-masting?
could you have been half-masting?
could she have been half-masting?
could we have been half-masting?
could you have been half-masting?
could they have been half-masting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not half-mast?
could you not half-mast?
could she not half-mast?
could we not half-mast?
could you not half-mast?
could they not half-mast? 	could I not be half-masting?
could you not be half-masting?
could she not be half-masting?
could we not be half-masting?
could you not be half-masting?
could they not be half-masting? 	could I not have half-masted?
could you not have half-masted?
could she not have half-masted?
could we not have half-masted?
could you not have half-masted?
could they not have half-masted? 	could I not have been half-masting?
could you not have been half-masting?
could she not have been half-masting?
could we not have been half-masting?
could you not have been half-masting?
could they not have been half-masting?