→ Present Perfect Continuous → Empezar lección / Descargar tarjetas en MP3

término		definición
He has been talking for half an hour. empezar lección		started in past and continues up to present + stress on duration
She has been walking all morning. Her feet hurt. empezar lección		action started in past and results of action are visible in the present.
Somebody has been giving away our plans. empezar lección		to express anger, irritation or annoyance.
We have lived/have been living empezar lección		with live, work, teach, and feel- no difference in meaning
time expressions empezar lección		for, since, how long, lately, recently

Present perfect continuous