English verb conjugation
CAN RULE

Regular verb: rule - ruled - ruled

Affirmation

Simple form	V-ing form
I can rule you can rule she can rule we can rule you can rule they can rule	I can be ruling you can be ruling she can be ruling we can be ruling you can be ruling they can be ruling
Perfect	V-ing perfect
I can have ruled you can have ruled she can have ruled we can have ruled you can have ruled they can have ruled	I can have been ruling you can have been ruling she can have been ruling we can have been ruling you can have been ruling they can have been ruling

Negation

Simple form	V-ing form
I cannot rule you cannot rule she cannot rule we cannot rule you cannot rule they cannot rule	I cannot be ruling you cannot be ruling she cannot be ruling we cannot be ruling you cannot be ruling they cannot be ruling
Perfect	V-ing perfect
I cannot have ruled you cannot have ruled she cannot have ruled we cannot have ruled you cannot have ruled they cannot have ruled	I cannot have been ruling you cannot have been ruling she cannot have been ruling we cannot have been ruling you cannot have been ruling they cannot have been ruling

Interrogative form

Simple form	V-ing form
can I rule? can you rule? can she rule? can we rule? can you rule? can they rule?	can I be ruling? can you be ruling? can she be ruling? can we be ruling? can you be ruling? can they be ruling?
Perfect	V-ing perfect
can I have ruled? can you have ruled? can she have ruled? can we have ruled? can you have ruled? can they have ruled?	can I have been ruling? can you have been ruling? can she have been ruling? can we have been ruling? can you have been ruling? can they have been ruling?

Interro-negative form

Simple form	V-ing form
can I not rule? can you not rule? can she not rule? can we not rule? can you not rule? can they not rule?	can I not be ruling? can you not be ruling? can she not be ruling? can we not be ruling? can you not be ruling? can they not be ruling?
Perfect	V-ing perfect
can I not have ruled? can you not have ruled? can she not have ruled? can we not have ruled? can you not have ruled? can they not have ruled?	can I not have been ruling? can you not have been ruling? can she not have been ruling? can we not have been ruling? can you not have been ruling? can they not have been ruling?