English verb conjugation
COULD UNDERCOOK

Regular verb: undercook - undercooked - undercooked

Affirmation

Simple form	V-ing form
I could undercook you could undercook he could undercook we could undercook you could undercook they could undercook	I could be undercooking you could be undercooking he could be undercooking we could be undercooking you could be undercooking they could be undercooking
Perfect	V-ing perfect
I could have undercooked you could have undercooked he could have undercooked we could have undercooked you could have undercooked they could have undercooked	I could have been undercooking you could have been undercooking he could have been undercooking we could have been undercooking you could have been undercooking they could have been undercooking

Negation

Simple form	V-ing form
I couldn't undercook you couldn't undercook he couldn't undercook we couldn't undercook you couldn't undercook they couldn't undercook	I couldn't be undercooking you couldn't be undercooking he couldn't be undercooking we couldn't be undercooking you couldn't be undercooking they couldn't be undercooking
Perfect	V-ing perfect
I couldn't have undercooked you couldn't have undercooked he couldn't have undercooked we couldn't have undercooked you couldn't have undercooked they couldn't have undercooked	I couldn't have been undercooking you couldn't have been undercooking he couldn't have been undercooking we couldn't have been undercooking you couldn't have been undercooking they couldn't have been undercooking

Interrogative form

Simple form	V-ing form
could I undercook? could you undercook? could he undercook? could we undercook? could you undercook? could they undercook?	could I be undercooking? could you be undercooking? could he be undercooking? could we be undercooking? could you be undercooking? could they be undercooking?
Perfect	V-ing perfect
could I have undercooked? could you have undercooked? could he have undercooked? could we have undercooked? could you have undercooked? could they have undercooked?	could I have been undercooking? could you have been undercooking? could he have been undercooking? could we have been undercooking? could you have been undercooking? could they have been undercooking?

Interro-negative form

Simple form	V-ing form
couldn't I undercook? couldn't you undercook? couldn't he undercook? couldn't we undercook? couldn't you undercook? couldn't they undercook?	couldn't I be undercooking? couldn't you be undercooking? couldn't he be undercooking? couldn't we be undercooking? couldn't you be undercooking? couldn't they be undercooking?
Perfect	V-ing perfect
couldn't I have undercooked? couldn't you have undercooked? couldn't he have undercooked? couldn't we have undercooked? couldn't you have undercooked? couldn't they have undercooked?	couldn't I have been undercooking? couldn't you have been undercooking? couldn't he have been undercooking? couldn't we have been undercooking? couldn't you have been undercooking? couldn't they have been undercooking?