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