I could summon you could summon she could summon we could summon you could summon they could summon
Forma com V-ing
I could be summoning you could be summoning she could be summoning we could be summoning you could be summoning they could be summoning
Perfeito
I could have summoned you could have summoned she could have summoned we could have summoned you could have summoned they could have summoned
Perfeito com V-ing
I could have been summoning you could have been summoning she could have been summoning we could have been summoning you could have been summoning they could have been summoning
Negação
Forma simple
I could not summon you could not summon she could not summon we could not summon you could not summon they could not summon
Forma com V-ing
I could not be summoning you could not be summoning she could not be summoning we could not be summoning you could not be summoning they could not be summoning
Perfeito
I could not have summoned you could not have summoned she could not have summoned we could not have summoned you could not have summoned they could not have summoned
Perfeito com V-ing
I could not have been summoning you could not have been summoning she could not have been summoning we could not have been summoning you could not have been summoning they could not have been summoning
Forma interrogativa
Forma simple
could I summon? could you summon? could she summon? could we summon? could you summon? could they summon?
Forma com V-ing
could I be summoning? could you be summoning? could she be summoning? could we be summoning? could you be summoning? could they be summoning?
Perfeito
could I have summoned? could you have summoned? could she have summoned? could we have summoned? could you have summoned? could they have summoned?
Perfeito com V-ing
could I have been summoning? could you have been summoning? could she have been summoning? could we have been summoning? could you have been summoning? could they have been summoning?
Forma interro-Negação
Forma simple
could I not summon? could you not summon? could she not summon? could we not summon? could you not summon? could they not summon?
Forma com V-ing
could I not be summoning? could you not be summoning? could she not be summoning? could we not be summoning? could you not be summoning? could they not be summoning?
Perfeito
could I not have summoned? could you not have summoned? could she not have summoned? could we not have summoned? could you not have summoned? could they not have summoned?
Perfeito com V-ing
could I not have been summoning? could you not have been summoning? could she not have been summoning? could we not have been summoning? could you not have been summoning? could they not have been summoning?