English verb conjugation
COULD NOTCH

Regular verb: notch - notched - notched

Affirmation

Simple form	V-ing form
I could notch you could notch he could notch we could notch you could notch they could notch	I could be notching you could be notching he could be notching we could be notching you could be notching they could be notching
Perfect	V-ing perfect
I could have notched you could have notched he could have notched we could have notched you could have notched they could have notched	I could have been notching you could have been notching he could have been notching we could have been notching you could have been notching they could have been notching

Negation

Simple form	V-ing form
I couldn't notch you couldn't notch he couldn't notch we couldn't notch you couldn't notch they couldn't notch	I couldn't be notching you couldn't be notching he couldn't be notching we couldn't be notching you couldn't be notching they couldn't be notching
Perfect	V-ing perfect
I couldn't have notched you couldn't have notched he couldn't have notched we couldn't have notched you couldn't have notched they couldn't have notched	I couldn't have been notching you couldn't have been notching he couldn't have been notching we couldn't have been notching you couldn't have been notching they couldn't have been notching

Interrogative form

Simple form	V-ing form
could I notch? could you notch? could he notch? could we notch? could you notch? could they notch?	could I be notching? could you be notching? could he be notching? could we be notching? could you be notching? could they be notching?
Perfect	V-ing perfect
could I have notched? could you have notched? could he have notched? could we have notched? could you have notched? could they have notched?	could I have been notching? could you have been notching? could he have been notching? could we have been notching? could you have been notching? could they have been notching?

Interro-negative form

Simple form	V-ing form
couldn't I notch? couldn't you notch? couldn't he notch? couldn't we notch? couldn't you notch? couldn't they notch?	couldn't I be notching? couldn't you be notching? couldn't he be notching? couldn't we be notching? couldn't you be notching? couldn't they be notching?
Perfect	V-ing perfect
couldn't I have notched? couldn't you have notched? couldn't he have notched? couldn't we have notched? couldn't you have notched? couldn't they have notched?	couldn't I have been notching? couldn't you have been notching? couldn't he have been notching? couldn't we have been notching? couldn't you have been notching? couldn't they have been notching?