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