"The survey was completed, with more than 90 percent of our workers part

[Sureshvemuri]

"The economic survey was completed, with more than 90 percent of our workers participating."

I think that when we said was finished or was complete we should mention the time.

"It was completed in february."
Is the above sentence ok?

Thanks,
Suresh

[Mister Micawber]

.
No mention of time is required to make the sentence grammatically correct. There have been a rash of such misconceptions on these internet grammar forums lately; I can't recall whether it was you or someone else who posted them, Suresh. In any case, the assumption is not true.

Columbus discovered America.
Napoleon conquered Europe.

Past tense does not require a mention of any time frame.
.
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Native English teacher at Mister Micawber's