English verb conjugation
CAN UNDERSTEER

Regular verb: understeer - understeered - understeered

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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