Advance ahead taking four strides in this sequence: left, right, left, right.
Move onward with a four-step pattern: left foot, right foot, left foot, right foot.
Proceed forward with steps numbered four, ordered as left, right, left, then right.
Step forward four times following the order: left, then right, then left again, and right last.
Take four forward steps in the sequence: left, right, left, right.
