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