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