I can lightning you can lightning she can lightning we can lightning you can lightning they can lightning
V-ing form
I can be lightninging you can be lightninging she can be lightninging we can be lightninging you can be lightninging they can be lightninging
Perfect
I can have lightninged you can have lightninged she can have lightninged we can have lightninged you can have lightninged they can have lightninged
V-ing perfect
I can have been lightninging you can have been lightninging she can have been lightninging we can have been lightninging you can have been lightninging they can have been lightninging
Negation
Simple form
I can't lightning you can't lightning she can't lightning we can't lightning you can't lightning they can't lightning
V-ing form
I can't be lightninging you can't be lightninging she can't be lightninging we can't be lightninging you can't be lightninging they can't be lightninging
Perfect
I can't have lightninged you can't have lightninged she can't have lightninged we can't have lightninged you can't have lightninged they can't have lightninged
V-ing perfect
I can't have been lightninging you can't have been lightninging she can't have been lightninging we can't have been lightninging you can't have been lightninging they can't have been lightninging
Interrogative form
Simple form
can I lightning? can you lightning? can she lightning? can we lightning? can you lightning? can they lightning?
V-ing form
can I be lightninging? can you be lightninging? can she be lightninging? can we be lightninging? can you be lightninging? can they be lightninging?
Perfect
can I have lightninged? can you have lightninged? can she have lightninged? can we have lightninged? can you have lightninged? can they have lightninged?
V-ing perfect
can I have been lightninging? can you have been lightninging? can she have been lightninging? can we have been lightninging? can you have been lightninging? can they have been lightninging?
Interro-negative form
Simple form
can't I lightning? can't you lightning? can't she lightning? can't we lightning? can't you lightning? can't they lightning?
V-ing form
can't I be lightninging? can't you be lightninging? can't she be lightninging? can't we be lightninging? can't you be lightninging? can't they be lightninging?
Perfect
can't I have lightninged? can't you have lightninged? can't she have lightninged? can't we have lightninged? can't you have lightninged? can't they have lightninged?
V-ing perfect
can't I have been lightninging? can't you have been lightninging? can't she have been lightninging? can't we have been lightninging? can't you have been lightninging? can't they have been lightninging?