Take four strides ahead, starting with the left foot, then right, left, and right again.
March forward with a sequence of four steps: left, right, left, right.
Advance by four paces, following the pattern left, right, left, right.
Step onward four times, alternating feet in the order left, right, left, right.
Move ahead with four steps, beginning on the left foot and alternating right, left, right.
