I collected some Simplicity Patterns though I don't sew. Simplicity Patterns links for beginners is here. Following is an example of a pattern at Simplicity Patterns:
Free Unisex Pull-on PJ Pants Pattern
Part 1: What do you need to get started?
Part 2: What pattern size are you?
Part 3: Anatomy of a pattern and fabric selections
Visit Simplicity Patterns for beginners to find out the latest tutorial.