Present Perfect Continuous

[why]

Test No. incompl/inter-7 "A Holiday Report", question 5

I have been ......... English for 5 years.

(a) study
(b) trying
(c) learning

Test No. incompl/inter-7 "A Holiday Report", answer 5

I have been learning English for 5 years.

Correct answer: (c) learning

Your answer was: incorrect
I have been study English for 5 years.
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Why

[Alan]

This is the structure of the Present Perfect Continuous as in:I have been LIVING here for 3 years.
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English as a Second Language
You can read my ESL story Present Simple