could aim
Verbo regular: aim - aimed- aimed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could aim
you could aim
she could aim
we could aim
you could aim
they could aim 	I could be aiming
you could be aiming
she could be aiming
we could be aiming
you could be aiming
they could be aiming	I could have aimed
you could have aimed
she could have aimed
we could have aimed
you could have aimed
they could have aimed	I could have been aiming
you could have been aiming
she could have been aiming
we could have been aiming
you could have been aiming
they could have been aiming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't aim
you couldn't aim
she couldn't aim
we couldn't aim
you couldn't aim
they couldn't aim 	I couldn't be aiming
you couldn't be aiming
she couldn't be aiming
we couldn't be aiming
you couldn't be aiming
they couldn't be aiming	I couldn't have aimed
you couldn't have aimed
she couldn't have aimed
we couldn't have aimed
you couldn't have aimed
they couldn't have aimed	I couldn't have been aiming
you couldn't have been aiming
she couldn't have been aiming
we couldn't have been aiming
you couldn't have been aiming
they couldn't have been aiming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I aim?
could you aim?
could she aim?
could we aim?
could you aim?
could they aim? 	could I be aiming?
could you be aiming?
could she be aiming?
could we be aiming?
could you be aiming?
could they be aiming? 	could I have aimed?
could you have aimed?
could she have aimed?
could we have aimed?
could you have aimed?
could they have aimed? 	could I have been aiming?
could you have been aiming?
could she have been aiming?
could we have been aiming?
could you have been aiming?
could they have been aiming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I aim?
couldn't you aim?
couldn't she aim?
couldn't we aim?
couldn't you aim?
couldn't they aim? 	couldn't I be aiming?
couldn't you be aiming?
couldn't she be aiming?
couldn't we be aiming?
couldn't you be aiming?
couldn't they be aiming? 	couldn't I have aimed?
couldn't you have aimed?
couldn't she have aimed?
couldn't we have aimed?
couldn't you have aimed?
couldn't they have aimed? 	couldn't I have been aiming?
couldn't you have been aiming?
couldn't she have been aiming?
couldn't we have been aiming?
couldn't you have been aiming?
couldn't they have been aiming?