Resultados posibles:
estabas marchando
-you were walking
Imperfecto progresivo para el sujeto del verbo marchar.
estabas marchando
-you were walking
Imperfecto progresivo para el sujeto vos del verbo marchar.

marchar

¿Por qué te estabas marchando de la conmemoración?
Why were you leaving the memorial?
Bueno, te estabas marchando.
Well, you were going away.
Sé que te estabas marchando.
I know you're on your way out.
Palabra del día
la guirnalda