Conjugación del verbo inglés
COULD EXTEMPORISE

Verbo regular: extemporise - extemporised - extemporised

Afirmación

Forma simple	Forma con V-ing
I could extemporise you could extemporise she could extemporise we could extemporise you could extemporise they could extemporise	I could be extemporising you could be extemporising she could be extemporising we could be extemporising you could be extemporising they could be extemporising
Perfecto	Perfecto con V-ing
I could have extemporised you could have extemporised she could have extemporised we could have extemporised you could have extemporised they could have extemporised	I could have been extemporising you could have been extemporising she could have been extemporising we could have been extemporising you could have been extemporising they could have been extemporising

Negación

Forma simple	Forma con V-ing
I couldn't extemporise you couldn't extemporise she couldn't extemporise we couldn't extemporise you couldn't extemporise they couldn't extemporise	I couldn't be extemporising you couldn't be extemporising she couldn't be extemporising we couldn't be extemporising you couldn't be extemporising they couldn't be extemporising
Perfecto	Perfecto con V-ing
I couldn't have extemporised you couldn't have extemporised she couldn't have extemporised we couldn't have extemporised you couldn't have extemporised they couldn't have extemporised	I couldn't have been extemporising you couldn't have been extemporising she couldn't have been extemporising we couldn't have been extemporising you couldn't have been extemporising they couldn't have been extemporising

Forma interrogativa

Forma simple	Forma con V-ing
could I extemporise? could you extemporise? could she extemporise? could we extemporise? could you extemporise? could they extemporise?	could I be extemporising? could you be extemporising? could she be extemporising? could we be extemporising? could you be extemporising? could they be extemporising?
Perfecto	Perfecto con V-ing
could I have extemporised? could you have extemporised? could she have extemporised? could we have extemporised? could you have extemporised? could they have extemporised?	could I have been extemporising? could you have been extemporising? could she have been extemporising? could we have been extemporising? could you have been extemporising? could they have been extemporising?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I extemporise? couldn't you extemporise? couldn't she extemporise? couldn't we extemporise? couldn't you extemporise? couldn't they extemporise?	couldn't I be extemporising? couldn't you be extemporising? couldn't she be extemporising? couldn't we be extemporising? couldn't you be extemporising? couldn't they be extemporising?
Perfecto	Perfecto con V-ing
couldn't I have extemporised? couldn't you have extemporised? couldn't she have extemporised? couldn't we have extemporised? couldn't you have extemporised? couldn't they have extemporised?	couldn't I have been extemporising? couldn't you have been extemporising? couldn't she have been extemporising? couldn't we have been extemporising? couldn't you have been extemporising? couldn't they have been extemporising?