English verb conjugation
COULD CRANK

Regular verb: crank - cranked - cranked

Affirmation

Simple form	V-ing form
I could crank you could crank she could crank we could crank you could crank they could crank	I could be cranking you could be cranking she could be cranking we could be cranking you could be cranking they could be cranking
Perfect	V-ing perfect
I could have cranked you could have cranked she could have cranked we could have cranked you could have cranked they could have cranked	I could have been cranking you could have been cranking she could have been cranking we could have been cranking you could have been cranking they could have been cranking

Negation

Simple form	V-ing form
I couldn't crank you couldn't crank she couldn't crank we couldn't crank you couldn't crank they couldn't crank	I couldn't be cranking you couldn't be cranking she couldn't be cranking we couldn't be cranking you couldn't be cranking they couldn't be cranking
Perfect	V-ing perfect
I couldn't have cranked you couldn't have cranked she couldn't have cranked we couldn't have cranked you couldn't have cranked they couldn't have cranked	I couldn't have been cranking you couldn't have been cranking she couldn't have been cranking we couldn't have been cranking you couldn't have been cranking they couldn't have been cranking

Interrogative form

Simple form	V-ing form
could I crank? could you crank? could she crank? could we crank? could you crank? could they crank?	could I be cranking? could you be cranking? could she be cranking? could we be cranking? could you be cranking? could they be cranking?
Perfect	V-ing perfect
could I have cranked? could you have cranked? could she have cranked? could we have cranked? could you have cranked? could they have cranked?	could I have been cranking? could you have been cranking? could she have been cranking? could we have been cranking? could you have been cranking? could they have been cranking?

Interro-negative form

Simple form	V-ing form
couldn't I crank? couldn't you crank? couldn't she crank? couldn't we crank? couldn't you crank? couldn't they crank?	couldn't I be cranking? couldn't you be cranking? couldn't she be cranking? couldn't we be cranking? couldn't you be cranking? couldn't they be cranking?
Perfect	V-ing perfect
couldn't I have cranked? couldn't you have cranked? couldn't she have cranked? couldn't we have cranked? couldn't you have cranked? couldn't they have cranked?	couldn't I have been cranking? couldn't you have been cranking? couldn't she have been cranking? couldn't we have been cranking? couldn't you have been cranking? couldn't they have been cranking?