I think all that is right because, when we use a past clause with the past tense, the fact in the clause is just in the past and we have no knowledge of the timing (so, as to the sentence "I didn't know that he would go there", maybe "he has gone" or "he went" before the time of speaking or "he is going" at the time of speaking or "he will go" after the time of speaking), and when we use a present/future clause with the past tense, we are sure of the timing and we know that the fact in the clause is in the past and in the present/future (so, as to the sentence "I didn't know that you will go there", it is likely that "he will go" after the time of speaking). Thank you.
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Anonymous "I didn't know that he would go there",Without any other information, I interpret it as:
Anonymous(so, as to the sentence "I didn't know that he would go there"This is fine.Look at it this way. If you went to a coworker's wedding last weekend and you saw Mary there, who previously told you that she probably couldn't make it for personal reasons. So you told John the next day " I didn't know (at the time that ) Mary wouldshow up ( a
AnonymousI didn't know that you will go thereNo. Don't use 'will' in a that-clause after "I didn't know". 'would' is OK.