could preassign
Verbo regular: preassign - preassigned- preassigned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could preassign
you could preassign
he could preassign
we could preassign
you could preassign
they could preassign 	I could be preassigning
you could be preassigning
he could be preassigning
we could be preassigning
you could be preassigning
they could be preassigning	I could have preassigned
you could have preassigned
he could have preassigned
we could have preassigned
you could have preassigned
they could have preassigned	I could have been preassigning
you could have been preassigning
he could have been preassigning
we could have been preassigning
you could have been preassigning
they could have been preassigning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't preassign
you couldn't preassign
he couldn't preassign
we couldn't preassign
you couldn't preassign
they couldn't preassign 	I couldn't be preassigning
you couldn't be preassigning
he couldn't be preassigning
we couldn't be preassigning
you couldn't be preassigning
they couldn't be preassigning	I couldn't have preassigned
you couldn't have preassigned
he couldn't have preassigned
we couldn't have preassigned
you couldn't have preassigned
they couldn't have preassigned	I couldn't have been preassigning
you couldn't have been preassigning
he couldn't have been preassigning
we couldn't have been preassigning
you couldn't have been preassigning
they couldn't have been preassigning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I preassign?
could you preassign?
could he preassign?
could we preassign?
could you preassign?
could they preassign? 	could I be preassigning?
could you be preassigning?
could he be preassigning?
could we be preassigning?
could you be preassigning?
could they be preassigning? 	could I have preassigned?
could you have preassigned?
could he have preassigned?
could we have preassigned?
could you have preassigned?
could they have preassigned? 	could I have been preassigning?
could you have been preassigning?
could he have been preassigning?
could we have been preassigning?
could you have been preassigning?
could they have been preassigning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I preassign?
couldn't you preassign?
couldn't he preassign?
couldn't we preassign?
couldn't you preassign?
couldn't they preassign? 	couldn't I be preassigning?
couldn't you be preassigning?
couldn't he be preassigning?
couldn't we be preassigning?
couldn't you be preassigning?
couldn't they be preassigning? 	couldn't I have preassigned?
couldn't you have preassigned?
couldn't he have preassigned?
couldn't we have preassigned?
couldn't you have preassigned?
couldn't they have preassigned? 	couldn't I have been preassigning?
couldn't you have been preassigning?
couldn't he have been preassigning?
couldn't we have been preassigning?
couldn't you have been preassigning?
couldn't they have been preassigning?