English verb conjugation
COULD ARM-WRESTLE

Regular verb: arm-wrestle - arm-wrestled - arm-wrestled

Affirmation

Simple form	V-ing form
I could arm-wrestle you could arm-wrestle he could arm-wrestle we could arm-wrestle you could arm-wrestle they could arm-wrestle	I could be arm-wrestling you could be arm-wrestling he could be arm-wrestling we could be arm-wrestling you could be arm-wrestling they could be arm-wrestling
Perfect	V-ing perfect
I could have arm-wrestled you could have arm-wrestled he could have arm-wrestled we could have arm-wrestled you could have arm-wrestled they could have arm-wrestled	I could have been arm-wrestling you could have been arm-wrestling he could have been arm-wrestling we could have been arm-wrestling you could have been arm-wrestling they could have been arm-wrestling

Negation

Simple form	V-ing form
I could not arm-wrestle you could not arm-wrestle he could not arm-wrestle we could not arm-wrestle you could not arm-wrestle they could not arm-wrestle	I could not be arm-wrestling you could not be arm-wrestling he could not be arm-wrestling we could not be arm-wrestling you could not be arm-wrestling they could not be arm-wrestling
Perfect	V-ing perfect
I could not have arm-wrestled you could not have arm-wrestled he could not have arm-wrestled we could not have arm-wrestled you could not have arm-wrestled they could not have arm-wrestled	I could not have been arm-wrestling you could not have been arm-wrestling he could not have been arm-wrestling we could not have been arm-wrestling you could not have been arm-wrestling they could not have been arm-wrestling

Interrogative form

Simple form	V-ing form
could I arm-wrestle? could you arm-wrestle? could he arm-wrestle? could we arm-wrestle? could you arm-wrestle? could they arm-wrestle?	could I be arm-wrestling? could you be arm-wrestling? could he be arm-wrestling? could we be arm-wrestling? could you be arm-wrestling? could they be arm-wrestling?
Perfect	V-ing perfect
could I have arm-wrestled? could you have arm-wrestled? could he have arm-wrestled? could we have arm-wrestled? could you have arm-wrestled? could they have arm-wrestled?	could I have been arm-wrestling? could you have been arm-wrestling? could he have been arm-wrestling? could we have been arm-wrestling? could you have been arm-wrestling? could they have been arm-wrestling?

Interro-negative form

Simple form	V-ing form
could I not arm-wrestle? could you not arm-wrestle? could he not arm-wrestle? could we not arm-wrestle? could you not arm-wrestle? could they not arm-wrestle?	could I not be arm-wrestling? could you not be arm-wrestling? could he not be arm-wrestling? could we not be arm-wrestling? could you not be arm-wrestling? could they not be arm-wrestling?
Perfect	V-ing perfect
could I not have arm-wrestled? could you not have arm-wrestled? could he not have arm-wrestled? could we not have arm-wrestled? could you not have arm-wrestled? could they not have arm-wrestled?	could I not have been arm-wrestling? could you not have been arm-wrestling? could he not have been arm-wrestling? could we not have been arm-wrestling? could you not have been arm-wrestling? could they not have been arm-wrestling?