English verb conjugation
COULD DEMOLISH

Regular verb: demolish - demolished - demolished

Affirmation

Simple form	V-ing form
I could demolish you could demolish he could demolish we could demolish you could demolish they could demolish	I could be demolishing you could be demolishing he could be demolishing we could be demolishing you could be demolishing they could be demolishing
Perfect	V-ing perfect
I could have demolished you could have demolished he could have demolished we could have demolished you could have demolished they could have demolished	I could have been demolishing you could have been demolishing he could have been demolishing we could have been demolishing you could have been demolishing they could have been demolishing

Negation

Simple form	V-ing form
I couldn't demolish you couldn't demolish he couldn't demolish we couldn't demolish you couldn't demolish they couldn't demolish	I couldn't be demolishing you couldn't be demolishing he couldn't be demolishing we couldn't be demolishing you couldn't be demolishing they couldn't be demolishing
Perfect	V-ing perfect
I couldn't have demolished you couldn't have demolished he couldn't have demolished we couldn't have demolished you couldn't have demolished they couldn't have demolished	I couldn't have been demolishing you couldn't have been demolishing he couldn't have been demolishing we couldn't have been demolishing you couldn't have been demolishing they couldn't have been demolishing

Interrogative form

Simple form	V-ing form
could I demolish? could you demolish? could he demolish? could we demolish? could you demolish? could they demolish?	could I be demolishing? could you be demolishing? could he be demolishing? could we be demolishing? could you be demolishing? could they be demolishing?
Perfect	V-ing perfect
could I have demolished? could you have demolished? could he have demolished? could we have demolished? could you have demolished? could they have demolished?	could I have been demolishing? could you have been demolishing? could he have been demolishing? could we have been demolishing? could you have been demolishing? could they have been demolishing?

Interro-negative form

Simple form	V-ing form
couldn't I demolish? couldn't you demolish? couldn't he demolish? couldn't we demolish? couldn't you demolish? couldn't they demolish?	couldn't I be demolishing? couldn't you be demolishing? couldn't he be demolishing? couldn't we be demolishing? couldn't you be demolishing? couldn't they be demolishing?
Perfect	V-ing perfect
couldn't I have demolished? couldn't you have demolished? couldn't he have demolished? couldn't we have demolished? couldn't you have demolished? couldn't they have demolished?	couldn't I have been demolishing? couldn't you have been demolishing? couldn't he have been demolishing? couldn't we have been demolishing? couldn't you have been demolishing? couldn't they have been demolishing?