could prefocus
Verbo regular: prefocus - prefocused- prefocused

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could prefocus
you could prefocus
he could prefocus
we could prefocus
you could prefocus
they could prefocus 	I could be prefocusing
you could be prefocusing
he could be prefocusing
we could be prefocusing
you could be prefocusing
they could be prefocusing	I could have prefocused
you could have prefocused
he could have prefocused
we could have prefocused
you could have prefocused
they could have prefocused	I could have been prefocusing
you could have been prefocusing
he could have been prefocusing
we could have been prefocusing
you could have been prefocusing
they could have been prefocusing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't prefocus
you couldn't prefocus
he couldn't prefocus
we couldn't prefocus
you couldn't prefocus
they couldn't prefocus 	I couldn't be prefocusing
you couldn't be prefocusing
he couldn't be prefocusing
we couldn't be prefocusing
you couldn't be prefocusing
they couldn't be prefocusing	I couldn't have prefocused
you couldn't have prefocused
he couldn't have prefocused
we couldn't have prefocused
you couldn't have prefocused
they couldn't have prefocused	I couldn't have been prefocusing
you couldn't have been prefocusing
he couldn't have been prefocusing
we couldn't have been prefocusing
you couldn't have been prefocusing
they couldn't have been prefocusing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I prefocus?
could you prefocus?
could he prefocus?
could we prefocus?
could you prefocus?
could they prefocus? 	could I be prefocusing?
could you be prefocusing?
could he be prefocusing?
could we be prefocusing?
could you be prefocusing?
could they be prefocusing? 	could I have prefocused?
could you have prefocused?
could he have prefocused?
could we have prefocused?
could you have prefocused?
could they have prefocused? 	could I have been prefocusing?
could you have been prefocusing?
could he have been prefocusing?
could we have been prefocusing?
could you have been prefocusing?
could they have been prefocusing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I prefocus?
couldn't you prefocus?
couldn't he prefocus?
couldn't we prefocus?
couldn't you prefocus?
couldn't they prefocus? 	couldn't I be prefocusing?
couldn't you be prefocusing?
couldn't he be prefocusing?
couldn't we be prefocusing?
couldn't you be prefocusing?
couldn't they be prefocusing? 	couldn't I have prefocused?
couldn't you have prefocused?
couldn't he have prefocused?
couldn't we have prefocused?
couldn't you have prefocused?
couldn't they have prefocused? 	couldn't I have been prefocusing?
couldn't you have been prefocusing?
couldn't he have been prefocusing?
couldn't we have been prefocusing?
couldn't you have been prefocusing?
couldn't they have been prefocusing?