English verb conjugation
COULD CARBURET

Regular verb: carburet - carbureted - carbureted

Affirmation

Simple form	V-ing form
I could carburet you could carburet he could carburet we could carburet you could carburet they could carburet	I could be carbureting you could be carbureting he could be carbureting we could be carbureting you could be carbureting they could be carbureting
Perfect	V-ing perfect
I could have carbureted you could have carbureted he could have carbureted we could have carbureted you could have carbureted they could have carbureted	I could have been carbureting you could have been carbureting he could have been carbureting we could have been carbureting you could have been carbureting they could have been carbureting

Negation

Simple form	V-ing form
I couldn't carburet you couldn't carburet he couldn't carburet we couldn't carburet you couldn't carburet they couldn't carburet	I couldn't be carbureting you couldn't be carbureting he couldn't be carbureting we couldn't be carbureting you couldn't be carbureting they couldn't be carbureting
Perfect	V-ing perfect
I couldn't have carbureted you couldn't have carbureted he couldn't have carbureted we couldn't have carbureted you couldn't have carbureted they couldn't have carbureted	I couldn't have been carbureting you couldn't have been carbureting he couldn't have been carbureting we couldn't have been carbureting you couldn't have been carbureting they couldn't have been carbureting

Interrogative form

Simple form	V-ing form
could I carburet? could you carburet? could he carburet? could we carburet? could you carburet? could they carburet?	could I be carbureting? could you be carbureting? could he be carbureting? could we be carbureting? could you be carbureting? could they be carbureting?
Perfect	V-ing perfect
could I have carbureted? could you have carbureted? could he have carbureted? could we have carbureted? could you have carbureted? could they have carbureted?	could I have been carbureting? could you have been carbureting? could he have been carbureting? could we have been carbureting? could you have been carbureting? could they have been carbureting?

Interro-negative form

Simple form	V-ing form
couldn't I carburet? couldn't you carburet? couldn't he carburet? couldn't we carburet? couldn't you carburet? couldn't they carburet?	couldn't I be carbureting? couldn't you be carbureting? couldn't he be carbureting? couldn't we be carbureting? couldn't you be carbureting? couldn't they be carbureting?
Perfect	V-ing perfect
couldn't I have carbureted? couldn't you have carbureted? couldn't he have carbureted? couldn't we have carbureted? couldn't you have carbureted? couldn't they have carbureted?	couldn't I have been carbureting? couldn't you have been carbureting? couldn't he have been carbureting? couldn't we have been carbureting? couldn't you have been carbureting? couldn't they have been carbureting?