Yes it is a present principle , my reason being is because , it can be used like so : i'am becoming , becoming as in present ,
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here are some examples below :
Becoming , entering , and going.
The word becoming is also an adjective , because it describes and gives an effect of attractive appearance ( what your are doing ).
The word becoming is also an Noun because it is any process of change.
( or changing) , so yes.
I really hope this helps, Answer = yes.