I can ping you can ping she can ping we can ping you can ping they can ping
V-ing form
I can be pinging you can be pinging she can be pinging we can be pinging you can be pinging they can be pinging
Perfect
I can have pinged you can have pinged she can have pinged we can have pinged you can have pinged they can have pinged
V-ing perfect
I can have been pinging you can have been pinging she can have been pinging we can have been pinging you can have been pinging they can have been pinging
Negation
Simple form
I cannot ping you cannot ping she cannot ping we cannot ping you cannot ping they cannot ping
V-ing form
I cannot be pinging you cannot be pinging she cannot be pinging we cannot be pinging you cannot be pinging they cannot be pinging
Perfect
I cannot have pinged you cannot have pinged she cannot have pinged we cannot have pinged you cannot have pinged they cannot have pinged
V-ing perfect
I cannot have been pinging you cannot have been pinging she cannot have been pinging we cannot have been pinging you cannot have been pinging they cannot have been pinging
Interrogative form
Simple form
can I ping? can you ping? can she ping? can we ping? can you ping? can they ping?
V-ing form
can I be pinging? can you be pinging? can she be pinging? can we be pinging? can you be pinging? can they be pinging?
Perfect
can I have pinged? can you have pinged? can she have pinged? can we have pinged? can you have pinged? can they have pinged?
V-ing perfect
can I have been pinging? can you have been pinging? can she have been pinging? can we have been pinging? can you have been pinging? can they have been pinging?
Interro-negative form
Simple form
can I not ping? can you not ping? can she not ping? can we not ping? can you not ping? can they not ping?
V-ing form
can I not be pinging? can you not be pinging? can she not be pinging? can we not be pinging? can you not be pinging? can they not be pinging?
Perfect
can I not have pinged? can you not have pinged? can she not have pinged? can we not have pinged? can you not have pinged? can they not have pinged?
V-ing perfect
can I not have been pinging? can you not have been pinging? can she not have been pinging? can we not have been pinging? can you not have been pinging? can they not have been pinging?