English verb conjugation
CAN ROC

Regular verb: roc - roced - roced

Affirmation

Simple form	V-ing form
I can roc you can roc he can roc we can roc you can roc they can roc	I can be rocing you can be rocing he can be rocing we can be rocing you can be rocing they can be rocing
Perfect	V-ing perfect
I can have roced you can have roced he can have roced we can have roced you can have roced they can have roced	I can have been rocing you can have been rocing he can have been rocing we can have been rocing you can have been rocing they can have been rocing

Negation

Simple form	V-ing form
I cannot roc you cannot roc he cannot roc we cannot roc you cannot roc they cannot roc	I cannot be rocing you cannot be rocing he cannot be rocing we cannot be rocing you cannot be rocing they cannot be rocing
Perfect	V-ing perfect
I cannot have roced you cannot have roced he cannot have roced we cannot have roced you cannot have roced they cannot have roced	I cannot have been rocing you cannot have been rocing he cannot have been rocing we cannot have been rocing you cannot have been rocing they cannot have been rocing

Interrogative form

Simple form	V-ing form
can I roc? can you roc? can he roc? can we roc? can you roc? can they roc?	can I be rocing? can you be rocing? can he be rocing? can we be rocing? can you be rocing? can they be rocing?
Perfect	V-ing perfect
can I have roced? can you have roced? can he have roced? can we have roced? can you have roced? can they have roced?	can I have been rocing? can you have been rocing? can he have been rocing? can we have been rocing? can you have been rocing? can they have been rocing?

Interro-negative form

Simple form	V-ing form
can I not roc? can you not roc? can he not roc? can we not roc? can you not roc? can they not roc?	can I not be rocing? can you not be rocing? can he not be rocing? can we not be rocing? can you not be rocing? can they not be rocing?
Perfect	V-ing perfect
can I not have roced? can you not have roced? can he not have roced? can we not have roced? can you not have roced? can they not have roced?	can I not have been rocing? can you not have been rocing? can he not have been rocing? can we not have been rocing? can you not have been rocing? can they not have been rocing?