Having finished her chores, she went for a walk. (Make it compound)

Perfect Participle যুক্ত Simple sentence কে Compound sentence এ রূপান্তর করার নিয়ম:
Subject + Perfect Participle এর  Past Perfect form + and + বাকি অংশ বসে। 

Simple Sentence: Having finished her chores, she went for a walk.
Compound Sentence: She had finished her chores and went for a walk.

More Example:
Simple Sentence: Having forgotten him, I went out.
Compound Sentence: I had forgotten him and went out.

Source: Advanced Learner's English Grammar & Composition by Chowdhury & Hossain.