I can commentate you can commentate she can commentate we can commentate you can commentate they can commentate
V-ing form
I can be commentating you can be commentating she can be commentating we can be commentating you can be commentating they can be commentating
Perfect
I can have commentated you can have commentated she can have commentated we can have commentated you can have commentated they can have commentated
V-ing perfect
I can have been commentating you can have been commentating she can have been commentating we can have been commentating you can have been commentating they can have been commentating
Negation
Simple form
I cannot commentate you cannot commentate she cannot commentate we cannot commentate you cannot commentate they cannot commentate
V-ing form
I cannot be commentating you cannot be commentating she cannot be commentating we cannot be commentating you cannot be commentating they cannot be commentating
Perfect
I cannot have commentated you cannot have commentated she cannot have commentated we cannot have commentated you cannot have commentated they cannot have commentated
V-ing perfect
I cannot have been commentating you cannot have been commentating she cannot have been commentating we cannot have been commentating you cannot have been commentating they cannot have been commentating
Interrogative form
Simple form
can I commentate? can you commentate? can she commentate? can we commentate? can you commentate? can they commentate?
V-ing form
can I be commentating? can you be commentating? can she be commentating? can we be commentating? can you be commentating? can they be commentating?
Perfect
can I have commentated? can you have commentated? can she have commentated? can we have commentated? can you have commentated? can they have commentated?
V-ing perfect
can I have been commentating? can you have been commentating? can she have been commentating? can we have been commentating? can you have been commentating? can they have been commentating?
Interro-negative form
Simple form
can I not commentate? can you not commentate? can she not commentate? can we not commentate? can you not commentate? can they not commentate?
V-ing form
can I not be commentating? can you not be commentating? can she not be commentating? can we not be commentating? can you not be commentating? can they not be commentating?
Perfect
can I not have commentated? can you not have commentated? can she not have commentated? can we not have commentated? can you not have commentated? can they not have commentated?
V-ing perfect
can I not have been commentating? can you not have been commentating? can she not have been commentating? can we not have been commentating? can you not have been commentating? can they not have been commentating?