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#1 puts more emphasis on the past-ness of the utterance. The tenses are therefore in accord with "said".
#3 puts more emphasis on the content of the utterance. The tenses that relate to the content are therefore in accord with the expected time-frame of the content.
#2 puts the utterance itself and the intention to visit in the past, and the time-frame of the visit in the present.
Please help me! 
Linear Mode
