Conjugación del verbo inglés
COULD SHELL

Verbo regular: shell - shelled - shelled

Afirmación

Forma simple	Forma con V-ing
I could shell you could shell he could shell we could shell you could shell they could shell	I could be shelling you could be shelling he could be shelling we could be shelling you could be shelling they could be shelling
Perfecto	Perfecto con V-ing
I could have shelled you could have shelled he could have shelled we could have shelled you could have shelled they could have shelled	I could have been shelling you could have been shelling he could have been shelling we could have been shelling you could have been shelling they could have been shelling

Negación

Forma simple	Forma con V-ing
I could not shell you could not shell he could not shell we could not shell you could not shell they could not shell	I could not be shelling you could not be shelling he could not be shelling we could not be shelling you could not be shelling they could not be shelling
Perfecto	Perfecto con V-ing
I could not have shelled you could not have shelled he could not have shelled we could not have shelled you could not have shelled they could not have shelled	I could not have been shelling you could not have been shelling he could not have been shelling we could not have been shelling you could not have been shelling they could not have been shelling

Forma interrogativa

Forma simple	Forma con V-ing
could I shell? could you shell? could he shell? could we shell? could you shell? could they shell?	could I be shelling? could you be shelling? could he be shelling? could we be shelling? could you be shelling? could they be shelling?
Perfecto	Perfecto con V-ing
could I have shelled? could you have shelled? could he have shelled? could we have shelled? could you have shelled? could they have shelled?	could I have been shelling? could you have been shelling? could he have been shelling? could we have been shelling? could you have been shelling? could they have been shelling?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not shell? could you not shell? could he not shell? could we not shell? could you not shell? could they not shell?	could I not be shelling? could you not be shelling? could he not be shelling? could we not be shelling? could you not be shelling? could they not be shelling?
Perfecto	Perfecto con V-ing
could I not have shelled? could you not have shelled? could he not have shelled? could we not have shelled? could you not have shelled? could they not have shelled?	could I not have been shelling? could you not have been shelling? could he not have been shelling? could we not have been shelling? could you not have been shelling? could they not have been shelling?