In the following question, one part of the sentence may have an error. Find out which part of the sentence has an error and click the option corresponding to it. If the sentence is free from error, click the 'No error' option. The introduction of a national Goods and Service tax in India (P) / promise to be a major step (Q) / towards a modern tax system (R) / No error(S)?

Option 2 : Q

The error lies in part Q of the question. Therefore, the correct answer is option 2.

The S-form is one of the forms of verbs used when the subject in the sentence is third person singular and when the action is in the present.

For example, Hema plays very well. Here, ‘plays’ is the S-form of the verb play.

In the given sentence, the main subject of the sentence is the Goods and Service tax and we are talking about its introduction. So the subject is singular and hence the S-form of the verb ‘promise’ should have been used.

Correct sentence – The introduction of a national Goods and Service tax in India promises to be a major step towards a modern tax system.

Tip – In order to choose the right verb, one should be able to identify the real subject of the sentence. The ‘something’ or ‘someone’ being talked about or doing the action is the subject of the sentence.