English verb conjugation
COULD UNDERSTEER

Regular verb: understeer - understeered - understeered

Affirmation

Simple form	V-ing form
I could understeer you could understeer she could understeer we could understeer you could understeer they could understeer	I could be understeering you could be understeering she could be understeering we could be understeering you could be understeering they could be understeering
Perfect	V-ing perfect
I could have understeered you could have understeered she could have understeered we could have understeered you could have understeered they could have understeered	I could have been understeering you could have been understeering she could have been understeering we could have been understeering you could have been understeering they could have been understeering

Negation

Simple form	V-ing form
I couldn't understeer you couldn't understeer she couldn't understeer we couldn't understeer you couldn't understeer they couldn't understeer	I couldn't be understeering you couldn't be understeering she couldn't be understeering we couldn't be understeering you couldn't be understeering they couldn't be understeering
Perfect	V-ing perfect
I couldn't have understeered you couldn't have understeered she couldn't have understeered we couldn't have understeered you couldn't have understeered they couldn't have understeered	I couldn't have been understeering you couldn't have been understeering she couldn't have been understeering we couldn't have been understeering you couldn't have been understeering they couldn't have been understeering

Interrogative form

Simple form	V-ing form
could I understeer? could you understeer? could she understeer? could we understeer? could you understeer? could they understeer?	could I be understeering? could you be understeering? could she be understeering? could we be understeering? could you be understeering? could they be understeering?
Perfect	V-ing perfect
could I have understeered? could you have understeered? could she have understeered? could we have understeered? could you have understeered? could they have understeered?	could I have been understeering? could you have been understeering? could she have been understeering? could we have been understeering? could you have been understeering? could they have been understeering?

Interro-negative form

Simple form	V-ing form
couldn't I understeer? couldn't you understeer? couldn't she understeer? couldn't we understeer? couldn't you understeer? couldn't they understeer?	couldn't I be understeering? couldn't you be understeering? couldn't she be understeering? couldn't we be understeering? couldn't you be understeering? couldn't they be understeering?
Perfect	V-ing perfect
couldn't I have understeered? couldn't you have understeered? couldn't she have understeered? couldn't we have understeered? couldn't you have understeered? couldn't they have understeered?	couldn't I have been understeering? couldn't you have been understeering? couldn't she have been understeering? couldn't we have been understeering? couldn't you have been understeering? couldn't they have been understeering?