English verb conjugation
COULD HARRUMPH

Regular verb: harrumph - harrumphed - harrumphed

Affirmation

Simple form	V-ing form
I could harrumph you could harrumph he could harrumph we could harrumph you could harrumph they could harrumph	I could be harrumphing you could be harrumphing he could be harrumphing we could be harrumphing you could be harrumphing they could be harrumphing
Perfect	V-ing perfect
I could have harrumphed you could have harrumphed he could have harrumphed we could have harrumphed you could have harrumphed they could have harrumphed	I could have been harrumphing you could have been harrumphing he could have been harrumphing we could have been harrumphing you could have been harrumphing they could have been harrumphing

Negation

Simple form	V-ing form
I couldn't harrumph you couldn't harrumph he couldn't harrumph we couldn't harrumph you couldn't harrumph they couldn't harrumph	I couldn't be harrumphing you couldn't be harrumphing he couldn't be harrumphing we couldn't be harrumphing you couldn't be harrumphing they couldn't be harrumphing
Perfect	V-ing perfect
I couldn't have harrumphed you couldn't have harrumphed he couldn't have harrumphed we couldn't have harrumphed you couldn't have harrumphed they couldn't have harrumphed	I couldn't have been harrumphing you couldn't have been harrumphing he couldn't have been harrumphing we couldn't have been harrumphing you couldn't have been harrumphing they couldn't have been harrumphing

Interrogative form

Simple form	V-ing form
could I harrumph? could you harrumph? could he harrumph? could we harrumph? could you harrumph? could they harrumph?	could I be harrumphing? could you be harrumphing? could he be harrumphing? could we be harrumphing? could you be harrumphing? could they be harrumphing?
Perfect	V-ing perfect
could I have harrumphed? could you have harrumphed? could he have harrumphed? could we have harrumphed? could you have harrumphed? could they have harrumphed?	could I have been harrumphing? could you have been harrumphing? could he have been harrumphing? could we have been harrumphing? could you have been harrumphing? could they have been harrumphing?

Interro-negative form

Simple form	V-ing form
couldn't I harrumph? couldn't you harrumph? couldn't he harrumph? couldn't we harrumph? couldn't you harrumph? couldn't they harrumph?	couldn't I be harrumphing? couldn't you be harrumphing? couldn't he be harrumphing? couldn't we be harrumphing? couldn't you be harrumphing? couldn't they be harrumphing?
Perfect	V-ing perfect
couldn't I have harrumphed? couldn't you have harrumphed? couldn't he have harrumphed? couldn't we have harrumphed? couldn't you have harrumphed? couldn't they have harrumphed?	couldn't I have been harrumphing? couldn't you have been harrumphing? couldn't he have been harrumphing? couldn't we have been harrumphing? couldn't you have been harrumphing? couldn't they have been harrumphing?