Conjugación del verbo inglés
CAN RETAIN

Verbo regular: retain - retained - retained

Afirmación

Forma simple	Forma con V-ing
I can retain you can retain he can retain we can retain you can retain they can retain	I can be retaining you can be retaining he can be retaining we can be retaining you can be retaining they can be retaining
Perfecto	Perfecto con V-ing
I can have retained you can have retained he can have retained we can have retained you can have retained they can have retained	I can have been retaining you can have been retaining he can have been retaining we can have been retaining you can have been retaining they can have been retaining

Negación

Forma simple	Forma con V-ing
I can't retain you can't retain he can't retain we can't retain you can't retain they can't retain	I can't be retaining you can't be retaining he can't be retaining we can't be retaining you can't be retaining they can't be retaining
Perfecto	Perfecto con V-ing
I can't have retained you can't have retained he can't have retained we can't have retained you can't have retained they can't have retained	I can't have been retaining you can't have been retaining he can't have been retaining we can't have been retaining you can't have been retaining they can't have been retaining

Forma interrogativa

Forma simple	Forma con V-ing
can I retain? can you retain? can he retain? can we retain? can you retain? can they retain?	can I be retaining? can you be retaining? can he be retaining? can we be retaining? can you be retaining? can they be retaining?
Perfecto	Perfecto con V-ing
can I have retained? can you have retained? can he have retained? can we have retained? can you have retained? can they have retained?	can I have been retaining? can you have been retaining? can he have been retaining? can we have been retaining? can you have been retaining? can they have been retaining?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I retain? can't you retain? can't he retain? can't we retain? can't you retain? can't they retain?	can't I be retaining? can't you be retaining? can't he be retaining? can't we be retaining? can't you be retaining? can't they be retaining?
Perfecto	Perfecto con V-ing
can't I have retained? can't you have retained? can't he have retained? can't we have retained? can't you have retained? can't they have retained?	can't I have been retaining? can't you have been retaining? can't he have been retaining? can't we have been retaining? can't you have been retaining? can't they have been retaining?