Conjugación del verbo inglés
COULD SUMMON

Verbo regular: summon - summoned - summoned

Afirmación

Forma simple	Forma con V-ing
I could summon you could summon he could summon we could summon you could summon they could summon	I could be summoning you could be summoning he could be summoning we could be summoning you could be summoning they could be summoning
Perfecto	Perfecto con V-ing
I could have summoned you could have summoned he could have summoned we could have summoned you could have summoned they could have summoned	I could have been summoning you could have been summoning he could have been summoning we could have been summoning you could have been summoning they could have been summoning

Negación

Forma simple	Forma con V-ing
I couldn't summon you couldn't summon he couldn't summon we couldn't summon you couldn't summon they couldn't summon	I couldn't be summoning you couldn't be summoning he couldn't be summoning we couldn't be summoning you couldn't be summoning they couldn't be summoning
Perfecto	Perfecto con V-ing
I couldn't have summoned you couldn't have summoned he couldn't have summoned we couldn't have summoned you couldn't have summoned they couldn't have summoned	I couldn't have been summoning you couldn't have been summoning he couldn't have been summoning we couldn't have been summoning you couldn't have been summoning they couldn't have been summoning

Forma interrogativa

Forma simple	Forma con V-ing
could I summon? could you summon? could he summon? could we summon? could you summon? could they summon?	could I be summoning? could you be summoning? could he be summoning? could we be summoning? could you be summoning? could they be summoning?
Perfecto	Perfecto con V-ing
could I have summoned? could you have summoned? could he have summoned? could we have summoned? could you have summoned? could they have summoned?	could I have been summoning? could you have been summoning? could he have been summoning? could we have been summoning? could you have been summoning? could they have been summoning?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I summon? couldn't you summon? couldn't he summon? couldn't we summon? couldn't you summon? couldn't they summon?	couldn't I be summoning? couldn't you be summoning? couldn't he be summoning? couldn't we be summoning? couldn't you be summoning? couldn't they be summoning?
Perfecto	Perfecto con V-ing
couldn't I have summoned? couldn't you have summoned? couldn't he have summoned? couldn't we have summoned? couldn't you have summoned? couldn't they have summoned?	couldn't I have been summoning? couldn't you have been summoning? couldn't he have been summoning? couldn't we have been summoning? couldn't you have been summoning? couldn't they have been summoning?