I was going through Level 1 again, and wondered if this construction can be used for other things. For example “Usted lleva jugando tenis desde hace una hora” = “You’ve been playing tennis for an hour now”
I have checked it on Google and it seems to work but I don’t always trust Google!
You’d absolutely certainly be understood - as to how natural a structure it sounds in that context, I’m going to tag @gabycortinas 
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