Conjugación del verbo inglés
COULD SURF

Verbo regular: surf - surfed - surfed

Afirmación

Forma simple	Forma con V-ing
I could surf you could surf he could surf we could surf you could surf they could surf	I could be surfing you could be surfing he could be surfing we could be surfing you could be surfing they could be surfing
Perfecto	Perfecto con V-ing
I could have surfed you could have surfed he could have surfed we could have surfed you could have surfed they could have surfed	I could have been surfing you could have been surfing he could have been surfing we could have been surfing you could have been surfing they could have been surfing

Negación

Forma simple	Forma con V-ing
I could not surf you could not surf he could not surf we could not surf you could not surf they could not surf	I could not be surfing you could not be surfing he could not be surfing we could not be surfing you could not be surfing they could not be surfing
Perfecto	Perfecto con V-ing
I could not have surfed you could not have surfed he could not have surfed we could not have surfed you could not have surfed they could not have surfed	I could not have been surfing you could not have been surfing he could not have been surfing we could not have been surfing you could not have been surfing they could not have been surfing

Forma interrogativa

Forma simple	Forma con V-ing
could I surf? could you surf? could he surf? could we surf? could you surf? could they surf?	could I be surfing? could you be surfing? could he be surfing? could we be surfing? could you be surfing? could they be surfing?
Perfecto	Perfecto con V-ing
could I have surfed? could you have surfed? could he have surfed? could we have surfed? could you have surfed? could they have surfed?	could I have been surfing? could you have been surfing? could he have been surfing? could we have been surfing? could you have been surfing? could they have been surfing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not surf? could you not surf? could he not surf? could we not surf? could you not surf? could they not surf?	could I not be surfing? could you not be surfing? could he not be surfing? could we not be surfing? could you not be surfing? could they not be surfing?
Perfecto	Perfecto con V-ing
could I not have surfed? could you not have surfed? could he not have surfed? could we not have surfed? could you not have surfed? could they not have surfed?	could I not have been surfing? could you not have been surfing? could he not have been surfing? could we not have been surfing? could you not have been surfing? could they not have been surfing?