English verb conjugation
COULD DIBBLE

Regular verb: dibble - dibbled - dibbled

Affirmation

Simple form	V-ing form
I could dibble you could dibble he could dibble we could dibble you could dibble they could dibble	I could be dibbling you could be dibbling he could be dibbling we could be dibbling you could be dibbling they could be dibbling
Perfect	V-ing perfect
I could have dibbled you could have dibbled he could have dibbled we could have dibbled you could have dibbled they could have dibbled	I could have been dibbling you could have been dibbling he could have been dibbling we could have been dibbling you could have been dibbling they could have been dibbling

Negation

Simple form	V-ing form
I couldn't dibble you couldn't dibble he couldn't dibble we couldn't dibble you couldn't dibble they couldn't dibble	I couldn't be dibbling you couldn't be dibbling he couldn't be dibbling we couldn't be dibbling you couldn't be dibbling they couldn't be dibbling
Perfect	V-ing perfect
I couldn't have dibbled you couldn't have dibbled he couldn't have dibbled we couldn't have dibbled you couldn't have dibbled they couldn't have dibbled	I couldn't have been dibbling you couldn't have been dibbling he couldn't have been dibbling we couldn't have been dibbling you couldn't have been dibbling they couldn't have been dibbling

Interrogative form

Simple form	V-ing form
could I dibble? could you dibble? could he dibble? could we dibble? could you dibble? could they dibble?	could I be dibbling? could you be dibbling? could he be dibbling? could we be dibbling? could you be dibbling? could they be dibbling?
Perfect	V-ing perfect
could I have dibbled? could you have dibbled? could he have dibbled? could we have dibbled? could you have dibbled? could they have dibbled?	could I have been dibbling? could you have been dibbling? could he have been dibbling? could we have been dibbling? could you have been dibbling? could they have been dibbling?

Interro-negative form

Simple form	V-ing form
couldn't I dibble? couldn't you dibble? couldn't he dibble? couldn't we dibble? couldn't you dibble? couldn't they dibble?	couldn't I be dibbling? couldn't you be dibbling? couldn't he be dibbling? couldn't we be dibbling? couldn't you be dibbling? couldn't they be dibbling?
Perfect	V-ing perfect
couldn't I have dibbled? couldn't you have dibbled? couldn't he have dibbled? couldn't we have dibbled? couldn't you have dibbled? couldn't they have dibbled?	couldn't I have been dibbling? couldn't you have been dibbling? couldn't he have been dibbling? couldn't we have been dibbling? couldn't you have been dibbling? couldn't they have been dibbling?