Verbal Reasoning - Mental Ability Questions

In all other pairs , second requires the first to function.

The series is a b c c a b | b c a a b c | a b c c a b

Here, the pattern a b c c a b | b c a a b c is repeated alternatively.

Durable means able to withstand wear, pressure.

Antonyms for Durable are Delicate, Flimsy, Short-lived.

An infinitive is a verbal that can function as noun, adjective, or adverb.

Having or involving the basic form of a verb is called Infinnitive clause.

Way to know whether there is an infinitive is to see whether there is the word "to" in the sentence.

Hence, option B) It is normal to make mistakes. is an infinitive sentence.