Este año pudieron terminar el trabajo por haber empezado a tiempo. Habían aprendido su lección del año anterior.This year they were able to finish the work because they started on time. They'd learned their lesson from last year.
Los obreros pudieron terminar el trabajo antes del verano por haber empezado a tiempo.The workers were able to finish the work before the summer because they started on time.
Pudieron terminar el trabajo por haber empezado a tiempo, como yo les aconsejé que hicieran.You were able to finish the work because you started on time, as I advised you to do.
Pudieron terminar el trabajo por haber empezado a tiempo. Además, la profesora les puso buena nota.They were able to finish the assignment because they started on time. Furthermore, the teacher gave them a good grade.
Ana y Luis pudieron terminar el trabajo por haber empezado a tiempo, en cambio nosotros tuvimos que pedirle al profesor que nos ampliara el plazo.Ana and Luis were able to finish the assignment because they started on time, while we had to ask the teacher for a deadline extension.
"Pudieron terminar el trabajo por haber empezado a tiempo, como deberían hacer siempre", les dijo el profesor a sus alumnos."You were able to finish the assignment because you started on time, as you should always do," said the teacher to his students.