Conjugación del verbo inglés COULD STEM
Verbo regular: stem - stemmed - stemmed
Afirmación
Forma simple
I could stemyou could stem
he could stem
we could stem
you could stem
they could stem
Forma con V-ing
I could be stemmingyou could be stemming
he could be stemming
we could be stemming
you could be stemming
they could be stemming
Perfecto
I could have stemmedyou could have stemmed
he could have stemmed
we could have stemmed
you could have stemmed
they could have stemmed
Perfecto con V-ing
I could have been stemmingyou could have been stemming
he could have been stemming
we could have been stemming
you could have been stemming
they could have been stemming
Negación
Forma simple
I could not stemyou could not stem
he could not stem
we could not stem
you could not stem
they could not stem
Forma con V-ing
I could not be stemmingyou could not be stemming
he could not be stemming
we could not be stemming
you could not be stemming
they could not be stemming
Perfecto
I could not have stemmedyou could not have stemmed
he could not have stemmed
we could not have stemmed
you could not have stemmed
they could not have stemmed
Perfecto con V-ing
I could not have been stemmingyou could not have been stemming
he could not have been stemming
we could not have been stemming
you could not have been stemming
they could not have been stemming
Forma interrogativa
Forma simple
could I stem?could you stem?
could he stem?
could we stem?
could you stem?
could they stem?
Forma con V-ing
could I be stemming?could you be stemming?
could he be stemming?
could we be stemming?
could you be stemming?
could they be stemming?
Perfecto
could I have stemmed?could you have stemmed?
could he have stemmed?
could we have stemmed?
could you have stemmed?
could they have stemmed?
Perfecto con V-ing
could I have been stemming?could you have been stemming?
could he have been stemming?
could we have been stemming?
could you have been stemming?
could they have been stemming?
Forma interro-negativa
Forma simple
could I not stem?could you not stem?
could he not stem?
could we not stem?
could you not stem?
could they not stem?
Forma con V-ing
could I not be stemming?could you not be stemming?
could he not be stemming?
could we not be stemming?
could you not be stemming?
could they not be stemming?
Perfecto
could I not have stemmed?could you not have stemmed?
could he not have stemmed?
could we not have stemmed?
could you not have stemmed?
could they not have stemmed?
Perfecto con V-ing
could I not have been stemming?could you not have been stemming?
could he not have been stemming?
could we not have been stemming?
could you not have been stemming?
could they not have been stemming?