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