gerund рhrase after a verb in passive voice tence

[andrew495]

Hi.

While reading an article about artificial intelligence I met a sentence. Here it is.

According to a servey up to 45 percent of tasks done daily in the workplace could be automated using current technology.

I got meaning, but I am curious if it is a correct sentence. I have a strong desire to put in the preposition "by" between automated and using.

Thanks for your answers.

 

[GoesStation]

It's correct as written or with "by" inserted where you suggest. "Using" could be replaced by "with".

 

[Rover_KE]

[STRIKE]tence[/STRIKE] sentence

[STRIKE]servey[/STRIKE] survey