She can swim when she was four., Correct, Incorrect, Could you help me, please?, Correct, Incorrect, May I come in?, Correct, Incorrect, I shall speak English., Correct, Incorrect, May you help me, please?, Correct, Incorrect, Could I come in?, Correct, Incorrect, She could swim when she was four., Correct, Incorrect, I can speak English., Correct, Incorrect, You can leave now., Correct, Incorrect, You could leave now., Correct, Incorrect, It may rain later., Correct, Incorrect

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