English verb conjugation
COULD UNDERCHARGE

Regular verb: undercharge - undercharged - undercharged

Affirmation

Simple form	V-ing form
I could undercharge you could undercharge he could undercharge we could undercharge you could undercharge they could undercharge	I could be undercharging you could be undercharging he could be undercharging we could be undercharging you could be undercharging they could be undercharging
Perfect	V-ing perfect
I could have undercharged you could have undercharged he could have undercharged we could have undercharged you could have undercharged they could have undercharged	I could have been undercharging you could have been undercharging he could have been undercharging we could have been undercharging you could have been undercharging they could have been undercharging

Negation

Simple form	V-ing form
I couldn't undercharge you couldn't undercharge he couldn't undercharge we couldn't undercharge you couldn't undercharge they couldn't undercharge	I couldn't be undercharging you couldn't be undercharging he couldn't be undercharging we couldn't be undercharging you couldn't be undercharging they couldn't be undercharging
Perfect	V-ing perfect
I couldn't have undercharged you couldn't have undercharged he couldn't have undercharged we couldn't have undercharged you couldn't have undercharged they couldn't have undercharged	I couldn't have been undercharging you couldn't have been undercharging he couldn't have been undercharging we couldn't have been undercharging you couldn't have been undercharging they couldn't have been undercharging

Interrogative form

Simple form	V-ing form
could I undercharge? could you undercharge? could he undercharge? could we undercharge? could you undercharge? could they undercharge?	could I be undercharging? could you be undercharging? could he be undercharging? could we be undercharging? could you be undercharging? could they be undercharging?
Perfect	V-ing perfect
could I have undercharged? could you have undercharged? could he have undercharged? could we have undercharged? could you have undercharged? could they have undercharged?	could I have been undercharging? could you have been undercharging? could he have been undercharging? could we have been undercharging? could you have been undercharging? could they have been undercharging?

Interro-negative form

Simple form	V-ing form
couldn't I undercharge? couldn't you undercharge? couldn't he undercharge? couldn't we undercharge? couldn't you undercharge? couldn't they undercharge?	couldn't I be undercharging? couldn't you be undercharging? couldn't he be undercharging? couldn't we be undercharging? couldn't you be undercharging? couldn't they be undercharging?
Perfect	V-ing perfect
couldn't I have undercharged? couldn't you have undercharged? couldn't he have undercharged? couldn't we have undercharged? couldn't you have undercharged? couldn't they have undercharged?	couldn't I have been undercharging? couldn't you have been undercharging? couldn't he have been undercharging? couldn't we have been undercharging? couldn't you have been undercharging? couldn't they have been undercharging?