Why いた is used instead of いる in the dialogue below?

> なんでえ  
>  生{い}きてたのか  
>  楓{かえで}ばばあ。

[![enter image description
here](https://i.stack.imgur.com/5MJyI.jpg)](https://i.stack.imgur.com/5MJyI.jpg)
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2016-11-14T01:24:29.593
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2017-07-16T04:50:20.937
2017-07-16T04:50:20.937
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question
grammar manga modality
Why いた is used instead of いる here?
なんで生きてたのか ー＞ Why you lived (~after a fight)? (~ How did you survived?)

なんで生きているのかー＞ Why you still living? (~ How come you are still alive?)

Your confusion is caused by this:

てた・ていた are both the same, the former being a different way to speak it.

（Compare to English wanna＝want to・don't=do not）
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2017-06-15T01:12:34.970
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2017-07-15T17:34:56.713
2017-07-15T17:34:56.713
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answer