Conjugación del verbo inglés
CAN FLEX

Verbo regular: flex - flexed - flexed

Afirmación

Forma simple	Forma con V-ing
I can flex you can flex he can flex we can flex you can flex they can flex	I can be flexing you can be flexing he can be flexing we can be flexing you can be flexing they can be flexing
Perfecto	Perfecto con V-ing
I can have flexed you can have flexed he can have flexed we can have flexed you can have flexed they can have flexed	I can have been flexing you can have been flexing he can have been flexing we can have been flexing you can have been flexing they can have been flexing

Negación

Forma simple	Forma con V-ing
I cannot flex you cannot flex he cannot flex we cannot flex you cannot flex they cannot flex	I cannot be flexing you cannot be flexing he cannot be flexing we cannot be flexing you cannot be flexing they cannot be flexing
Perfecto	Perfecto con V-ing
I cannot have flexed you cannot have flexed he cannot have flexed we cannot have flexed you cannot have flexed they cannot have flexed	I cannot have been flexing you cannot have been flexing he cannot have been flexing we cannot have been flexing you cannot have been flexing they cannot have been flexing

Forma interrogativa

Forma simple	Forma con V-ing
can I flex? can you flex? can he flex? can we flex? can you flex? can they flex?	can I be flexing? can you be flexing? can he be flexing? can we be flexing? can you be flexing? can they be flexing?
Perfecto	Perfecto con V-ing
can I have flexed? can you have flexed? can he have flexed? can we have flexed? can you have flexed? can they have flexed?	can I have been flexing? can you have been flexing? can he have been flexing? can we have been flexing? can you have been flexing? can they have been flexing?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not flex? can you not flex? can he not flex? can we not flex? can you not flex? can they not flex?	can I not be flexing? can you not be flexing? can he not be flexing? can we not be flexing? can you not be flexing? can they not be flexing?
Perfecto	Perfecto con V-ing
can I not have flexed? can you not have flexed? can he not have flexed? can we not have flexed? can you not have flexed? can they not have flexed?	can I not have been flexing? can you not have been flexing? can he not have been flexing? can we not have been flexing? can you not have been flexing? can they not have been flexing?