Can one say:<br/><span style="color:#ff0000;">1-I am sorry <u>to bother</u> you last night.</span><br/>instead of:<br/><span style="color:#000000;">2-I am sorry <u>to have bothered</u> you last night.</span><br/><br/>Can one say:<br/><span style="color:#ff0000;">3-I regret <u>to bother</u> you last night.</span><br/>instead of:<br/><span style="color:#000000;">4-I regret <u>to have bothered</u> you last night.</span><br/><br/>Can one say:<br/><span style="color:#ff0000;">5-I am ashamed <u>to bother</u> you last night.</span><br/>instead of:<br/><span style="color:#000000;">6-I am ashamed <u>to have bothered</u> you last night.</span><br/><br/><span style="color:#000000;">Gratefully,</span><br/><span style="color:#000000;">Navi.</span>