English verb conjugation
COULD KIBBLE

Regular verb: kibble - kibbled - kibbled

Affirmation

Simple form	V-ing form
I could kibble you could kibble he could kibble we could kibble you could kibble they could kibble	I could be kibbling you could be kibbling he could be kibbling we could be kibbling you could be kibbling they could be kibbling
Perfect	V-ing perfect
I could have kibbled you could have kibbled he could have kibbled we could have kibbled you could have kibbled they could have kibbled	I could have been kibbling you could have been kibbling he could have been kibbling we could have been kibbling you could have been kibbling they could have been kibbling

Negation

Simple form	V-ing form
I couldn't kibble you couldn't kibble he couldn't kibble we couldn't kibble you couldn't kibble they couldn't kibble	I couldn't be kibbling you couldn't be kibbling he couldn't be kibbling we couldn't be kibbling you couldn't be kibbling they couldn't be kibbling
Perfect	V-ing perfect
I couldn't have kibbled you couldn't have kibbled he couldn't have kibbled we couldn't have kibbled you couldn't have kibbled they couldn't have kibbled	I couldn't have been kibbling you couldn't have been kibbling he couldn't have been kibbling we couldn't have been kibbling you couldn't have been kibbling they couldn't have been kibbling

Interrogative form

Simple form	V-ing form
could I kibble? could you kibble? could he kibble? could we kibble? could you kibble? could they kibble?	could I be kibbling? could you be kibbling? could he be kibbling? could we be kibbling? could you be kibbling? could they be kibbling?
Perfect	V-ing perfect
could I have kibbled? could you have kibbled? could he have kibbled? could we have kibbled? could you have kibbled? could they have kibbled?	could I have been kibbling? could you have been kibbling? could he have been kibbling? could we have been kibbling? could you have been kibbling? could they have been kibbling?

Interro-negative form

Simple form	V-ing form
couldn't I kibble? couldn't you kibble? couldn't he kibble? couldn't we kibble? couldn't you kibble? couldn't they kibble?	couldn't I be kibbling? couldn't you be kibbling? couldn't he be kibbling? couldn't we be kibbling? couldn't you be kibbling? couldn't they be kibbling?
Perfect	V-ing perfect
couldn't I have kibbled? couldn't you have kibbled? couldn't he have kibbled? couldn't we have kibbled? couldn't you have kibbled? couldn't they have kibbled?	couldn't I have been kibbling? couldn't you have been kibbling? couldn't he have been kibbling? couldn't we have been kibbling? couldn't you have been kibbling? couldn't they have been kibbling?