New answers tagged progressive-aspect
I Think it's just a matter of emphasis...in the Present Perfect Continuous you want to emphasize the action.
1.) I'll keep you company while you wait. 2.) I'll keep you company while you are waiting. Both versions are grammatical and standard English. Here's some related info from CGEL, on their subsection on "(d) Duration", pages 165-6: Where two situations are of the same duration and simultaneous, it is possible to use the progressive for either, ...
There is a big difference between both phrases. The 1st sentence tells us, he is still in his work and will continue. 2nd sentence tells us, he just quit from that work. Thanks
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