I could vivify you could vivify he could vivify we could vivify you could vivify they could vivify
Forma con V-ing
I could be vivifying you could be vivifying he could be vivifying we could be vivifying you could be vivifying they could be vivifying
Perfecto
I could have vivified you could have vivified he could have vivified we could have vivified you could have vivified they could have vivified
Perfecto con V-ing
I could have been vivifying you could have been vivifying he could have been vivifying we could have been vivifying you could have been vivifying they could have been vivifying
Negación
Forma simple
I couldn't vivify you couldn't vivify he couldn't vivify we couldn't vivify you couldn't vivify they couldn't vivify
Forma con V-ing
I couldn't be vivifying you couldn't be vivifying he couldn't be vivifying we couldn't be vivifying you couldn't be vivifying they couldn't be vivifying
Perfecto
I couldn't have vivified you couldn't have vivified he couldn't have vivified we couldn't have vivified you couldn't have vivified they couldn't have vivified
Perfecto con V-ing
I couldn't have been vivifying you couldn't have been vivifying he couldn't have been vivifying we couldn't have been vivifying you couldn't have been vivifying they couldn't have been vivifying
Forma interrogativa
Forma simple
could I vivify? could you vivify? could he vivify? could we vivify? could you vivify? could they vivify?
Forma con V-ing
could I be vivifying? could you be vivifying? could he be vivifying? could we be vivifying? could you be vivifying? could they be vivifying?
Perfecto
could I have vivified? could you have vivified? could he have vivified? could we have vivified? could you have vivified? could they have vivified?
Perfecto con V-ing
could I have been vivifying? could you have been vivifying? could he have been vivifying? could we have been vivifying? could you have been vivifying? could they have been vivifying?
Forma interro-negativa
Forma simple
couldn't I vivify? couldn't you vivify? couldn't he vivify? couldn't we vivify? couldn't you vivify? couldn't they vivify?
Forma con V-ing
couldn't I be vivifying? couldn't you be vivifying? couldn't he be vivifying? couldn't we be vivifying? couldn't you be vivifying? couldn't they be vivifying?
Perfecto
couldn't I have vivified? couldn't you have vivified? couldn't he have vivified? couldn't we have vivified? couldn't you have vivified? couldn't they have vivified?
Perfecto con V-ing
couldn't I have been vivifying? couldn't you have been vivifying? couldn't he have been vivifying? couldn't we have been vivifying? couldn't you have been vivifying? couldn't they have been vivifying?