Sarah, The "helps finance insurgency" part is fine. The word 'from' is not needed following robs. You might substitute another word for the "insurgent" that begins the sentence.
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SarahkuangHi, teachers
Here is part of news:
Insurgent fuel smuggling operation robs from Iraq's economy and helps finance insurgency.
Should it be " helps financing " ? Which way is native? help to finance , help finance, help financing?
Thanks