I can submerge you can submerge she can submerge we can submerge you can submerge they can submerge
V-ing form
I can be submerging you can be submerging she can be submerging we can be submerging you can be submerging they can be submerging
Perfect
I can have submerged you can have submerged she can have submerged we can have submerged you can have submerged they can have submerged
V-ing perfect
I can have been submerging you can have been submerging she can have been submerging we can have been submerging you can have been submerging they can have been submerging
Negation
Simple form
I cannot submerge you cannot submerge she cannot submerge we cannot submerge you cannot submerge they cannot submerge
V-ing form
I cannot be submerging you cannot be submerging she cannot be submerging we cannot be submerging you cannot be submerging they cannot be submerging
Perfect
I cannot have submerged you cannot have submerged she cannot have submerged we cannot have submerged you cannot have submerged they cannot have submerged
V-ing perfect
I cannot have been submerging you cannot have been submerging she cannot have been submerging we cannot have been submerging you cannot have been submerging they cannot have been submerging
Interrogative form
Simple form
can I submerge? can you submerge? can she submerge? can we submerge? can you submerge? can they submerge?
V-ing form
can I be submerging? can you be submerging? can she be submerging? can we be submerging? can you be submerging? can they be submerging?
Perfect
can I have submerged? can you have submerged? can she have submerged? can we have submerged? can you have submerged? can they have submerged?
V-ing perfect
can I have been submerging? can you have been submerging? can she have been submerging? can we have been submerging? can you have been submerging? can they have been submerging?
Interro-negative form
Simple form
can I not submerge? can you not submerge? can she not submerge? can we not submerge? can you not submerge? can they not submerge?
V-ing form
can I not be submerging? can you not be submerging? can she not be submerging? can we not be submerging? can you not be submerging? can they not be submerging?
Perfect
can I not have submerged? can you not have submerged? can she not have submerged? can we not have submerged? can you not have submerged? can they not have submerged?
V-ing perfect
can I not have been submerging? can you not have been submerging? can she not have been submerging? can we not have been submerging? can you not have been submerging? can they not have been submerging?