could windrow
Verbo regular: windrow - windrowed- windrowed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could windrow
you could windrow
he could windrow
we could windrow
you could windrow
they could windrow 	I could be windrowing
you could be windrowing
he could be windrowing
we could be windrowing
you could be windrowing
they could be windrowing	I could have windrowed
you could have windrowed
he could have windrowed
we could have windrowed
you could have windrowed
they could have windrowed	I could have been windrowing
you could have been windrowing
he could have been windrowing
we could have been windrowing
you could have been windrowing
they could have been windrowing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't windrow
you couldn't windrow
he couldn't windrow
we couldn't windrow
you couldn't windrow
they couldn't windrow 	I couldn't be windrowing
you couldn't be windrowing
he couldn't be windrowing
we couldn't be windrowing
you couldn't be windrowing
they couldn't be windrowing	I couldn't have windrowed
you couldn't have windrowed
he couldn't have windrowed
we couldn't have windrowed
you couldn't have windrowed
they couldn't have windrowed	I couldn't have been windrowing
you couldn't have been windrowing
he couldn't have been windrowing
we couldn't have been windrowing
you couldn't have been windrowing
they couldn't have been windrowing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I windrow?
could you windrow?
could he windrow?
could we windrow?
could you windrow?
could they windrow? 	could I be windrowing?
could you be windrowing?
could he be windrowing?
could we be windrowing?
could you be windrowing?
could they be windrowing? 	could I have windrowed?
could you have windrowed?
could he have windrowed?
could we have windrowed?
could you have windrowed?
could they have windrowed? 	could I have been windrowing?
could you have been windrowing?
could he have been windrowing?
could we have been windrowing?
could you have been windrowing?
could they have been windrowing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I windrow?
couldn't you windrow?
couldn't he windrow?
couldn't we windrow?
couldn't you windrow?
couldn't they windrow? 	couldn't I be windrowing?
couldn't you be windrowing?
couldn't he be windrowing?
couldn't we be windrowing?
couldn't you be windrowing?
couldn't they be windrowing? 	couldn't I have windrowed?
couldn't you have windrowed?
couldn't he have windrowed?
couldn't we have windrowed?
couldn't you have windrowed?
couldn't they have windrowed? 	couldn't I have been windrowing?
couldn't you have been windrowing?
couldn't he have been windrowing?
couldn't we have been windrowing?
couldn't you have been windrowing?
couldn't they have been windrowing?