Resultados posibles:
estabas sudando
-you were sweating
Imperfecto progresivo para el sujeto del verbo sudar.
estabas sudando
-you were sweating
Imperfecto progresivo para el sujeto vos del verbo sudar.

sudar

Bueno, estabas sudando y tartamudeando y...
Well, you were sweating and stammering and...
Es una conjetura desesperada que se te ocurrió porque estabas sudando.
This is a wild guess that came to you because you were sweating.
estabas sudando. ¡Hola, Diane!
You were sweating. Hey, Diane!
También estabas sudando así en aquel momento.
You were sweating then, too.
Palabra del día
el muérdago