Conjugación del verbo inglés COULD STRENGTHEN
Verbo regular: strengthen - strengthened - strengthened
Afirmación
Forma simple
I could strengthenyou could strengthen
he could strengthen
we could strengthen
you could strengthen
they could strengthen
Forma con V-ing
I could be strengtheningyou could be strengthening
he could be strengthening
we could be strengthening
you could be strengthening
they could be strengthening
Perfecto
I could have strengthenedyou could have strengthened
he could have strengthened
we could have strengthened
you could have strengthened
they could have strengthened
Perfecto con V-ing
I could have been strengtheningyou could have been strengthening
he could have been strengthening
we could have been strengthening
you could have been strengthening
they could have been strengthening
Negación
Forma simple
I couldn't strengthenyou couldn't strengthen
he couldn't strengthen
we couldn't strengthen
you couldn't strengthen
they couldn't strengthen
Forma con V-ing
I couldn't be strengtheningyou couldn't be strengthening
he couldn't be strengthening
we couldn't be strengthening
you couldn't be strengthening
they couldn't be strengthening
Perfecto
I couldn't have strengthenedyou couldn't have strengthened
he couldn't have strengthened
we couldn't have strengthened
you couldn't have strengthened
they couldn't have strengthened
Perfecto con V-ing
I couldn't have been strengtheningyou couldn't have been strengthening
he couldn't have been strengthening
we couldn't have been strengthening
you couldn't have been strengthening
they couldn't have been strengthening
Forma interrogativa
Forma simple
could I strengthen?could you strengthen?
could he strengthen?
could we strengthen?
could you strengthen?
could they strengthen?
Forma con V-ing
could I be strengthening?could you be strengthening?
could he be strengthening?
could we be strengthening?
could you be strengthening?
could they be strengthening?
Perfecto
could I have strengthened?could you have strengthened?
could he have strengthened?
could we have strengthened?
could you have strengthened?
could they have strengthened?
Perfecto con V-ing
could I have been strengthening?could you have been strengthening?
could he have been strengthening?
could we have been strengthening?
could you have been strengthening?
could they have been strengthening?
Forma interro-negativa
Forma simple
couldn't I strengthen?couldn't you strengthen?
couldn't he strengthen?
couldn't we strengthen?
couldn't you strengthen?
couldn't they strengthen?
Forma con V-ing
couldn't I be strengthening?couldn't you be strengthening?
couldn't he be strengthening?
couldn't we be strengthening?
couldn't you be strengthening?
couldn't they be strengthening?
Perfecto
couldn't I have strengthened?couldn't you have strengthened?
couldn't he have strengthened?
couldn't we have strengthened?
couldn't you have strengthened?
couldn't they have strengthened?
Perfecto con V-ing
couldn't I have been strengthening?couldn't you have been strengthening?
couldn't he have been strengthening?
couldn't we have been strengthening?
couldn't you have been strengthening?
couldn't they have been strengthening?