English verb conjugation
COULD HAWK

Regular verb: hawk - hawked - hawked

Affirmation

Simple form	V-ing form
I could hawk you could hawk he could hawk we could hawk you could hawk they could hawk	I could be hawking you could be hawking he could be hawking we could be hawking you could be hawking they could be hawking
Perfect	V-ing perfect
I could have hawked you could have hawked he could have hawked we could have hawked you could have hawked they could have hawked	I could have been hawking you could have been hawking he could have been hawking we could have been hawking you could have been hawking they could have been hawking

Negation

Simple form	V-ing form
I couldn't hawk you couldn't hawk he couldn't hawk we couldn't hawk you couldn't hawk they couldn't hawk	I couldn't be hawking you couldn't be hawking he couldn't be hawking we couldn't be hawking you couldn't be hawking they couldn't be hawking
Perfect	V-ing perfect
I couldn't have hawked you couldn't have hawked he couldn't have hawked we couldn't have hawked you couldn't have hawked they couldn't have hawked	I couldn't have been hawking you couldn't have been hawking he couldn't have been hawking we couldn't have been hawking you couldn't have been hawking they couldn't have been hawking

Interrogative form

Simple form	V-ing form
could I hawk? could you hawk? could he hawk? could we hawk? could you hawk? could they hawk?	could I be hawking? could you be hawking? could he be hawking? could we be hawking? could you be hawking? could they be hawking?
Perfect	V-ing perfect
could I have hawked? could you have hawked? could he have hawked? could we have hawked? could you have hawked? could they have hawked?	could I have been hawking? could you have been hawking? could he have been hawking? could we have been hawking? could you have been hawking? could they have been hawking?

Interro-negative form

Simple form	V-ing form
couldn't I hawk? couldn't you hawk? couldn't he hawk? couldn't we hawk? couldn't you hawk? couldn't they hawk?	couldn't I be hawking? couldn't you be hawking? couldn't he be hawking? couldn't we be hawking? couldn't you be hawking? couldn't they be hawking?
Perfect	V-ing perfect
couldn't I have hawked? couldn't you have hawked? couldn't he have hawked? couldn't we have hawked? couldn't you have hawked? couldn't they have hawked?	couldn't I have been hawking? couldn't you have been hawking? couldn't he have been hawking? couldn't we have been hawking? couldn't you have been hawking? couldn't they have been hawking?