Take an exam,
Not give an exam
Ex: The pupil took an exam.
Note: The teacher gives or sets the exam.
The student takes the exam or sits the exam.
To be busy,
Not to have work.
Ex: I’m very busy this morning.
Give an example,
Not bring an example.
Ex: Can you give a better example?
My watch is slow or fast,
Not goes behind or in front.
Ex: My watch is two minutes slow.
Put on weight,
Not put weight.
Ex: I’ve put on at least three kilos.
Note: The opposite of to put on weight is to lose weight: She has lost five kilos.
It works miracles,
Not it makes miracles.
Ex: That medicine works miracles.