What is correct and why?

[Thinker]

Hi Alan and Torsten. Help me please.
What is correct and why?
Masha is tired. She have been ranning for 45 min.
and
Masha is tired. She had been running for 45 min.
Many thanks.
Thinker

[Torsten]

Hi Thinker,

Here is my suggestion:

Masha is tired because she has been running for 45 minutes. (present perfect progressive for an action that started in the past and lasts right up to the moment of speaking)

When Masha came home last night she was tired because she had been running for 45 minutes. (past perfect progressive for an action that started at some point in the past, continued for while and for a while and ended at some point in the past)
_________________
Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[Thinker]

many thanks