Concord in English language means agreement and according to the English grammar the word concord means grammatical agreement between the subject and the verb, it says that both the subject and verb shall satisfy or agree in number and person. We would try to explain the possibilities of the usage of concord in English grammar. 

What is Concord?

Concord is a word which is originally derived from Latin for agreement, in the context of English grammar concord could be defined as the grammatical agreement between the two words in a sentence, which is the grammatical agreement between mainly the subject and the verb in the sentence. The general idea of concord is that the verb must agree with its subject in number and person. 

The Classification of concord

There are number of classifications in the concord, we would discuss these one by one;

• When more than two singular nouns or pronouns joined by and require a plural verb as,

1. Iron and aluminium are metals.
2. He and I were swimming.

• But if the noun suggests one singular idea or person than the verb is singular.

The poet and dramatist is gone to Delhi.

• If the words are joined by with, as well as, etc to a singular subject then verb should be singular

1. The computer with its accessories was insured.
2. The President with his ministers is to be present at 0930 hrs.

• A singular verb is used if the two or more than two singular nouns are connected by nor or or 

• Either the horse or the cow has been here.

• Neither praise nor criticism seems to have any effect on him.

If more than two plural subjects are joined by or or nor than the nearest to or will decide the nature of the verb

Neither the manager nor the waiters are present.

• If the subjects are joined by or or nor  and it signifies different persons than the verb has to agree to the nearer, such as,

1. Either I or he is at fault.
2. Either he or you are mistaken.

• Some specific words always take up singular verbs and these words are:

Somebody, none, anybody, anyone, everyone, each, and everybody.

1. Each boy is running.
2. Everyone is working hard.

• If two nouns are connected by and, but are qualified by every or each then, it must take singular verb

Every boy and every girl were greeted with a rose.

• When some nouns are singular in meaning but are plural in the form then the verb is singular as,

The news is authentic.

• If the noun is plural in meaning but is singular in form than it will take up plural verb as,

According to the market rate, twelve dozen cost two hundred rupees.

• When we talk in respect of income, the means always take up the plural verbs as,

His means are in great quantity.

• If the plural noun is used for a single object or its proper name then the followed verb should be singular

Conclusion

The topic concord looks into the subject-verb agreement and their various rules. The classifications should be kept in mind to avoid any misuse or grammatical errors while speaking or writing. 

The Arabian nights is an interesting story.