The most
important rules in English language is between subject and verb must be in
agreement. That is if the subject is
singular then the verb must be singular too. Otherwise, if the subject is
plural then the verb must be plural too.
1. Singular Subject – Singular Verb
The definition of singular subject is subject
pronoun he, she, and it, or nouns which can be replaced with he, she, or it.
While the definition of singular verbs is verb1+es/s, is/was, and verb phrase
as: is/was + verb-ing/verb3, has +verb3, has been verb-ing and has been
verb3.
Singular patterns of subject-verb singular is presented in the following table:
Singular Subject
Singular Verb
Tenses
1
He/She/it
Verb1 + es/s
Simple Present
2
He/She/it
is + verb-ing
present continuous
3
He/She/it...