Category 1: Tense
Category 2: Word Formation
Category 3: Prepositions
Category 4: Word Misuse
Category 5: Logical
100

She has worked here since the company open.


open → opened

100

The proposal is financially risk.


risk → risky

100

The outcome depends from external factors.


from → on

100

The witness refused that he had seen the file.


refused → denied

100

The evidence was contradictory, so the conclusion was certain.


certain → uncertain

200

When we arrived, they already leave.


leave → left

200

Her explanation lacked full accurate.


accurate → accuracy

200

She objected against the resolution.


against → to

200

The report says substantial evidence.


says → provides

200

The system failed completely, yet it continued operating normally.


normally → poorly

300

I would rather he speaks less during meetings.


speaks → spoke

300

The decision was reached unanimous.


unanimous → unanimously

300

He is responsible of the oversight.


of → for

300

The findings came from a sampling bias.


came → resulted

300

The instructions were classified, but they were shared openly.


openly → privately

400

If she had known, she will reject the offer.


will → would

400

His reasoning is not entirely logic.


logic → logical

400

The conclusion is based in flawed data.


in → on

400

The policy stopped unauthorized access.


stopped → prevented

400

The data were verified as false, yet they were treated as reliable.


reliable → unreliable

500

No sooner had he arrived than the discussion start.


start → started

500

The report identified several structural weak.


weak → weaknesses

500

They insisted to the original terms.


to → on

500

The argument rose several concerns.


rose → raised

500

The contract was declared void, but it remained fully binding.


binding → invalid

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