Yes, but you must use them in the past tense (said/told/asked). Example:
James told me he was very tired.
2011년 4월 27일
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Yes.
2011년 4월 26일
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Above answers are good. Also remember that "tell" and "say" are used differently. You MUST put an object after "tell" (me, her, Tom, the class, etc.). Examples:
He said he was going to the party.
He told me he was going to the party.