What preposition should we use to start a sentence where we first explain a purpose and then a method to achieve it?
Example 1
Purpose = pass the exams
Method = study a lot
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In order to pass the exams, you have to study a lot.
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To pass the exams, you have to study a lot.
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*For passing the exams, you have to study a lot. (incorrect – see accepted answer)
Example 2
Purpose = find an object in the database
Method = run a SQL query
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In order to find the object in the database, users have to run a SQL query.
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To find the object in the database, users have to run a SQL query.
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*For finding the object in the database, users have to run a SQL query. (incorrect – see accepted answer)
Best Answer
"For passing" and "for finding" are not correct. "In order to" and "To" are correct, but I favour "To" because it is more concise:
A more natural way of saying this is: