English verb conjugation
CAN STOP

Regular verb: stop - stopped - stopped

Affirmation

Simple form	V-ing form
I can stop you can stop he can stop we can stop you can stop they can stop	I can be stopping you can be stopping he can be stopping we can be stopping you can be stopping they can be stopping
Perfect	V-ing perfect
I can have stopped you can have stopped he can have stopped we can have stopped you can have stopped they can have stopped	I can have been stopping you can have been stopping he can have been stopping we can have been stopping you can have been stopping they can have been stopping

Negation

Simple form	V-ing form
I can't stop you can't stop he can't stop we can't stop you can't stop they can't stop	I can't be stopping you can't be stopping he can't be stopping we can't be stopping you can't be stopping they can't be stopping
Perfect	V-ing perfect
I can't have stopped you can't have stopped he can't have stopped we can't have stopped you can't have stopped they can't have stopped	I can't have been stopping you can't have been stopping he can't have been stopping we can't have been stopping you can't have been stopping they can't have been stopping

Interrogative form

Simple form	V-ing form
can I stop? can you stop? can he stop? can we stop? can you stop? can they stop?	can I be stopping? can you be stopping? can he be stopping? can we be stopping? can you be stopping? can they be stopping?
Perfect	V-ing perfect
can I have stopped? can you have stopped? can he have stopped? can we have stopped? can you have stopped? can they have stopped?	can I have been stopping? can you have been stopping? can he have been stopping? can we have been stopping? can you have been stopping? can they have been stopping?

Interro-negative form

Simple form	V-ing form
can't I stop? can't you stop? can't he stop? can't we stop? can't you stop? can't they stop?	can't I be stopping? can't you be stopping? can't he be stopping? can't we be stopping? can't you be stopping? can't they be stopping?
Perfect	V-ing perfect
can't I have stopped? can't you have stopped? can't he have stopped? can't we have stopped? can't you have stopped? can't they have stopped?	can't I have been stopping? can't you have been stopping? can't he have been stopping? can't we have been stopping? can't you have been stopping? can't they have been stopping?