1) I<b>'ve noticed</b> that I <b>made</b> a mistake in my previous post/ I<b>'ve just realized</b> that I <b>made</b> a mistake in my exam.<br/><br/>2) I<b>'ve noticed</b> that I <b>have made</b> a mistake in my previous post/ I<b>'ve just realized</b> that I <b>have made</b> a mistake in my exam.<br/><br/>Both correct?<br/><br/>If yes, which one's more commonly used?<br/><br/>Thanks.