Conjugación del verbo inglés
CAN GRAB

Verbo regular: grab - grabbed - grabbed

Afirmación

Forma simple	Forma con V-ing
I can grab you can grab he can grab we can grab you can grab they can grab	I can be grabbing you can be grabbing he can be grabbing we can be grabbing you can be grabbing they can be grabbing
Perfecto	Perfecto con V-ing
I can have grabbed you can have grabbed he can have grabbed we can have grabbed you can have grabbed they can have grabbed	I can have been grabbing you can have been grabbing he can have been grabbing we can have been grabbing you can have been grabbing they can have been grabbing

Negación

Forma simple	Forma con V-ing
I cannot grab you cannot grab he cannot grab we cannot grab you cannot grab they cannot grab	I cannot be grabbing you cannot be grabbing he cannot be grabbing we cannot be grabbing you cannot be grabbing they cannot be grabbing
Perfecto	Perfecto con V-ing
I cannot have grabbed you cannot have grabbed he cannot have grabbed we cannot have grabbed you cannot have grabbed they cannot have grabbed	I cannot have been grabbing you cannot have been grabbing he cannot have been grabbing we cannot have been grabbing you cannot have been grabbing they cannot have been grabbing

Forma interrogativa

Forma simple	Forma con V-ing
can I grab? can you grab? can he grab? can we grab? can you grab? can they grab?	can I be grabbing? can you be grabbing? can he be grabbing? can we be grabbing? can you be grabbing? can they be grabbing?
Perfecto	Perfecto con V-ing
can I have grabbed? can you have grabbed? can he have grabbed? can we have grabbed? can you have grabbed? can they have grabbed?	can I have been grabbing? can you have been grabbing? can he have been grabbing? can we have been grabbing? can you have been grabbing? can they have been grabbing?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not grab? can you not grab? can he not grab? can we not grab? can you not grab? can they not grab?	can I not be grabbing? can you not be grabbing? can he not be grabbing? can we not be grabbing? can you not be grabbing? can they not be grabbing?
Perfecto	Perfecto con V-ing
can I not have grabbed? can you not have grabbed? can he not have grabbed? can we not have grabbed? can you not have grabbed? can they not have grabbed?	can I not have been grabbing? can you not have been grabbing? can he not have been grabbing? can we not have been grabbing? can you not have been grabbing? can they not have been grabbing?