If I <b>were</b> you, I <b>would</b> do it<br/><br/>If I <b>had</b> been you, I <b>would</b> have done it.<br/><br/>I think the tense of '<b>were'</b> and '<b>had' </b>affects the tense or shape of '<b>would'</b> in dependent clauses.<b> </b>What do you teachers think?<br/><br/>Thank you in advance.