based on

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ShirleyLing

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"Points are determined (based) on the final results."

Is "based" mandatory?
 

JTRiff

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In this example, yes, it is.:)


not a teacher
 

Rover_KE

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I'd need more context before giving a firm answer.

What are we talking about here?

Rover
 

ShirleyLing

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"Costs will be determined based on design, construction bids and other factors."
 

Rover_KE

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"Costs will be determined based on design, construction bids and other factors."

That's fine, but it's got nothing to do with your original sentence.

Rover
 

ShirleyLing

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So, "based" is necessary?
 

ShirleyLing

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A better example: "Scores are determined (based) on distance and accuracy for each event."

So is "based" optional here?
 
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Rover_KE

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I would say it's optional here.

Rover
 

ShirleyLing

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What about the example in post #4 of this thread? Is "based" also optional in that example?
 

Rover_KE

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I'd leave it in.
 

ShirleyLing

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In post #4, "based" is mandatory in "Costs will be determined based on design, construction bids and other factors."

But in post #7, "based" is merely optional in "Scores are determined based on distance and accuracy for each event."

How can I tell when to leave out "based"?
 

Rover_KE

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If in doubt, leave it in.

It will never be wrong.

Rover
 
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