The ninth rule of the consecration of subjects states that if distances, weights, or quantities represent a fixed unit or size, they are treated as singular and the folded verb is also singular. Subject-verb concordance means that the number and person of the subject must match the verb of a given sentence. This concordance of the subject and the verb is called Concord. There are certain rules for this agreement. The final rule for subject-verb agreement is that nouns such as short stories, physics, measles, ethics are plural, but are considered singular when used in a sentence. The second rule for DieKord is that the subject is “one of + plural subject” singular and the verb with it is also singular. स्टेशनरी सभी के लिए पर्याप्त नहीं है। This rule states that the word “none” takes a verb according to the meaning of the sentence.