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