Conjugación del verbo inglés
COULD EXTEMPORIZE

Verbo regular: extemporize - extemporized - extemporized

Afirmación

Forma simple	Forma con V-ing
I could extemporize you could extemporize she could extemporize we could extemporize you could extemporize they could extemporize	I could be extemporizing you could be extemporizing she could be extemporizing we could be extemporizing you could be extemporizing they could be extemporizing
Perfecto	Perfecto con V-ing
I could have extemporized you could have extemporized she could have extemporized we could have extemporized you could have extemporized they could have extemporized	I could have been extemporizing you could have been extemporizing she could have been extemporizing we could have been extemporizing you could have been extemporizing they could have been extemporizing

Negación

Forma simple	Forma con V-ing
I couldn't extemporize you couldn't extemporize she couldn't extemporize we couldn't extemporize you couldn't extemporize they couldn't extemporize	I couldn't be extemporizing you couldn't be extemporizing she couldn't be extemporizing we couldn't be extemporizing you couldn't be extemporizing they couldn't be extemporizing
Perfecto	Perfecto con V-ing
I couldn't have extemporized you couldn't have extemporized she couldn't have extemporized we couldn't have extemporized you couldn't have extemporized they couldn't have extemporized	I couldn't have been extemporizing you couldn't have been extemporizing she couldn't have been extemporizing we couldn't have been extemporizing you couldn't have been extemporizing they couldn't have been extemporizing

Forma interrogativa

Forma simple	Forma con V-ing
could I extemporize? could you extemporize? could she extemporize? could we extemporize? could you extemporize? could they extemporize?	could I be extemporizing? could you be extemporizing? could she be extemporizing? could we be extemporizing? could you be extemporizing? could they be extemporizing?
Perfecto	Perfecto con V-ing
could I have extemporized? could you have extemporized? could she have extemporized? could we have extemporized? could you have extemporized? could they have extemporized?	could I have been extemporizing? could you have been extemporizing? could she have been extemporizing? could we have been extemporizing? could you have been extemporizing? could they have been extemporizing?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I extemporize? couldn't you extemporize? couldn't she extemporize? couldn't we extemporize? couldn't you extemporize? couldn't they extemporize?	couldn't I be extemporizing? couldn't you be extemporizing? couldn't she be extemporizing? couldn't we be extemporizing? couldn't you be extemporizing? couldn't they be extemporizing?
Perfecto	Perfecto con V-ing
couldn't I have extemporized? couldn't you have extemporized? couldn't she have extemporized? couldn't we have extemporized? couldn't you have extemporized? couldn't they have extemporized?	couldn't I have been extemporizing? couldn't you have been extemporizing? couldn't she have been extemporizing? couldn't we have been extemporizing? couldn't you have been extemporizing? couldn't they have been extemporizing?