English verb conjugation
COULD TOOL

Regular verb: tool - tooled - tooled

Affirmation

Simple form	V-ing form
I could tool you could tool she could tool we could tool you could tool they could tool	I could be tooling you could be tooling she could be tooling we could be tooling you could be tooling they could be tooling
Perfect	V-ing perfect
I could have tooled you could have tooled she could have tooled we could have tooled you could have tooled they could have tooled	I could have been tooling you could have been tooling she could have been tooling we could have been tooling you could have been tooling they could have been tooling

Negation

Simple form	V-ing form
I couldn't tool you couldn't tool she couldn't tool we couldn't tool you couldn't tool they couldn't tool	I couldn't be tooling you couldn't be tooling she couldn't be tooling we couldn't be tooling you couldn't be tooling they couldn't be tooling
Perfect	V-ing perfect
I couldn't have tooled you couldn't have tooled she couldn't have tooled we couldn't have tooled you couldn't have tooled they couldn't have tooled	I couldn't have been tooling you couldn't have been tooling she couldn't have been tooling we couldn't have been tooling you couldn't have been tooling they couldn't have been tooling

Interrogative form

Simple form	V-ing form
could I tool? could you tool? could she tool? could we tool? could you tool? could they tool?	could I be tooling? could you be tooling? could she be tooling? could we be tooling? could you be tooling? could they be tooling?
Perfect	V-ing perfect
could I have tooled? could you have tooled? could she have tooled? could we have tooled? could you have tooled? could they have tooled?	could I have been tooling? could you have been tooling? could she have been tooling? could we have been tooling? could you have been tooling? could they have been tooling?

Interro-negative form

Simple form	V-ing form
couldn't I tool? couldn't you tool? couldn't she tool? couldn't we tool? couldn't you tool? couldn't they tool?	couldn't I be tooling? couldn't you be tooling? couldn't she be tooling? couldn't we be tooling? couldn't you be tooling? couldn't they be tooling?
Perfect	V-ing perfect
couldn't I have tooled? couldn't you have tooled? couldn't she have tooled? couldn't we have tooled? couldn't you have tooled? couldn't they have tooled?	couldn't I have been tooling? couldn't you have been tooling? couldn't she have been tooling? couldn't we have been tooling? couldn't you have been tooling? couldn't they have been tooling?