<b>Please do help me! Thanks in advance.</b><br/><br/><b>Here is my question:</b><br/><br/><b> </b><br/><br/><b><i>“He tried his best. He wanted his parents to be pleased.”</i></b><br/><br/><b> </b><br/><br/><b>Can I do like this:</b><br/><ol> <li><b>1. </b> With “clause of purpose”</li> </ol><b>He tried his best so that his parents would be pleased.</b><br/><br/><b> </b><br/><ol> <li><b>2. </b>With “phrase of purpose”:<ol> <li><b>a. </b>He tried his best so as for his parents to be pleased.</li> <li><b>b. </b>He tried his best in order for his parents to be pleased.</li> <li><b>c. </b>He tried his best for his parents to be pleased.</li> </ol></li> </ol><b> </b><br/><br/><b>Among the three options, I prefer “B. in order for sb. to inf”</b><br/><br/><b> </b><br/><br/><b>I am wondering if “so as for sb. to inf” or “for sb. to inf” is correct or not.</b><br/><br/><b> </b><br/><br/><b>However, I know that using “so that” sounds best here.</b>