Many swimmers have the tendency to cross over their mid-line thus creating a swerve in their stroke and body position. 
To keep your front crawl and body symmetrical, enter your arm into the water between the shoulder and head. To ensure that you do not cross over your mid-line for the pull swim on top of the lane marker located at the bottom of the pool to ensure that your and cross over the black line and thus the mid-line.
If you want to learn more tips from the Sport and Wellness Aquatic instructors sign up for swimming lessons, adult lessons, private lessons or Masters Swim.
