Children learn a lot by imitating adults. They imitate adults by seeing and observing, or by listening. For this reason, we should not be surprised to hear our child suddenly saying swear words or harsh words that we have never taught. Maybe, they possibly heard that invective from a maid, from television, or from ourselves. When children say such harsh words, at that time parents, also need to give an explanation of the meaning of these words and their effects and try to correct them.