A dozen v.s. dozens of

INCORRECT		CORRECT
	There are a dozen of eggs on the table.		There are a dozen eggs on the table.

"Dozen" means twelve and therefore we do not use the proposition "of" with it. We never use "of" with exact number figures. We do, however, use "of" with the plural form to indicate that there are very many of them. For example, "Dozen of people showed up to listen to him speak."

The same is true for the plural form of other numbers, for example, "hundreds of", "thousands of", "millions of", etc.

succeed in something

INCORRECT		CORRECT
	Johnson & Johnson succeeded to earn a good reputation in the market.		Johnson & Johnson succeeded in earning a good reputation in the market.

We cannot add an infinitive verb form to the word "succeed". Instead, we can "succeed in something" and "succeed in doing something". For example, "Johnson & Johnson succeeded in the market after earning a good reputation".

release vs. relax

INCORRECT		CORRECT
	We will never release the new policy.		We will never relax the new policy.

"Release" means "to make something public", "to let go" or "to free someone from responsibility". The author implies to "make something less strict". Therefore, "relax" is more appropriate. The opposite of "relax" here would be "tighten" as in "The administration will tighten the restrictions on absences."

Longer hours

INCORRECT		CORRECT
	In the IT department we work longer time.		In the IT department we work longer hours than other department.

The use of "-er" is comparative. The logical question should be "work longer than whom?" If the first sentence is to be correct, it has to be depend on another party of comparison. "Long hours" is a set phrase in English used to describe a long period of time in which one works.

Merged by or Merged with?

INCORRECT		CORRECT
	We heard that Yahoo may be merged by Microsoft.		We heard that Yahoo may be merged with Microsoft.

The correct preposition to describe two companies merging together is "with".

Under such circumstances

INCORRECT		CORRECT
	I cannot work under this situation.		I cannot work under such circumstances.

You could say "I can't work in such a situation". You could also say "I can't work under such circumstance". The problem is using proper prepositions.

Under the table and Above board

INCORRECT		CORRECT
	He's so honest. He does all of his business on the table.		He's so honest. He does all his business above board.

The opposite of "under the table" is "above board". "On the table" only has a literal meaning as in "she cut the bread on the table".