Conjugación del verbo inglés
COULD DISCOVER

Verbo regular: discover - discovered - discovered

Afirmación

Forma simple	Forma con V-ing
I could discover you could discover he could discover we could discover you could discover they could discover	I could be discovering you could be discovering he could be discovering we could be discovering you could be discovering they could be discovering
Perfecto	Perfecto con V-ing
I could have discovered you could have discovered he could have discovered we could have discovered you could have discovered they could have discovered	I could have been discovering you could have been discovering he could have been discovering we could have been discovering you could have been discovering they could have been discovering

Negación

Forma simple	Forma con V-ing
I couldn't discover you couldn't discover he couldn't discover we couldn't discover you couldn't discover they couldn't discover	I couldn't be discovering you couldn't be discovering he couldn't be discovering we couldn't be discovering you couldn't be discovering they couldn't be discovering
Perfecto	Perfecto con V-ing
I couldn't have discovered you couldn't have discovered he couldn't have discovered we couldn't have discovered you couldn't have discovered they couldn't have discovered	I couldn't have been discovering you couldn't have been discovering he couldn't have been discovering we couldn't have been discovering you couldn't have been discovering they couldn't have been discovering

Forma interrogativa

Forma simple	Forma con V-ing
could I discover? could you discover? could he discover? could we discover? could you discover? could they discover?	could I be discovering? could you be discovering? could he be discovering? could we be discovering? could you be discovering? could they be discovering?
Perfecto	Perfecto con V-ing
could I have discovered? could you have discovered? could he have discovered? could we have discovered? could you have discovered? could they have discovered?	could I have been discovering? could you have been discovering? could he have been discovering? could we have been discovering? could you have been discovering? could they have been discovering?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I discover? couldn't you discover? couldn't he discover? couldn't we discover? couldn't you discover? couldn't they discover?	couldn't I be discovering? couldn't you be discovering? couldn't he be discovering? couldn't we be discovering? couldn't you be discovering? couldn't they be discovering?
Perfecto	Perfecto con V-ing
couldn't I have discovered? couldn't you have discovered? couldn't he have discovered? couldn't we have discovered? couldn't you have discovered? couldn't they have discovered?	couldn't I have been discovering? couldn't you have been discovering? couldn't he have been discovering? couldn't we have been discovering? couldn't you have been discovering? couldn't they have been discovering?