سوال گرامری،در مورد clause

Question

Erthquake strikes border cities,claiming many lives

این قسمت دوم که از claiming شروع میشه،چه نوع ساختاری هست؟یه مقدار توضیح بدین ممنون میشم.
چون در حالت عادی به این صورت مینویسیم این جمله رو.

Erthquake strikes border cities and claims many lives

Answer 1

Using ing in here is a way of summarizing your sentences suggested also in IELTS speaking test.

Eg:

As I was walking down the road I met him.

Walking down the road, I met him.

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