I could tame you could tame he could tame we could tame you could tame they could tame
V-ing form
I could be taming you could be taming he could be taming we could be taming you could be taming they could be taming
Perfect
I could have tamed you could have tamed he could have tamed we could have tamed you could have tamed they could have tamed
V-ing perfect
I could have been taming you could have been taming he could have been taming we could have been taming you could have been taming they could have been taming
Negation
Simple form
I couldn't tame you couldn't tame he couldn't tame we couldn't tame you couldn't tame they couldn't tame
V-ing form
I couldn't be taming you couldn't be taming he couldn't be taming we couldn't be taming you couldn't be taming they couldn't be taming
Perfect
I couldn't have tamed you couldn't have tamed he couldn't have tamed we couldn't have tamed you couldn't have tamed they couldn't have tamed
V-ing perfect
I couldn't have been taming you couldn't have been taming he couldn't have been taming we couldn't have been taming you couldn't have been taming they couldn't have been taming
Interrogative form
Simple form
could I tame? could you tame? could he tame? could we tame? could you tame? could they tame?
V-ing form
could I be taming? could you be taming? could he be taming? could we be taming? could you be taming? could they be taming?
Perfect
could I have tamed? could you have tamed? could he have tamed? could we have tamed? could you have tamed? could they have tamed?
V-ing perfect
could I have been taming? could you have been taming? could he have been taming? could we have been taming? could you have been taming? could they have been taming?
Interro-negative form
Simple form
couldn't I tame? couldn't you tame? couldn't he tame? couldn't we tame? couldn't you tame? couldn't they tame?
V-ing form
couldn't I be taming? couldn't you be taming? couldn't he be taming? couldn't we be taming? couldn't you be taming? couldn't they be taming?
Perfect
couldn't I have tamed? couldn't you have tamed? couldn't he have tamed? couldn't we have tamed? couldn't you have tamed? couldn't they have tamed?
V-ing perfect
couldn't I have been taming? couldn't you have been taming? couldn't he have been taming? couldn't we have been taming? couldn't you have been taming? couldn't they have been taming?