"여자가 남자에게 책을 줍니다."
Translation:The woman gives the man a book.
If you're referring to the English usage, this relates to subject-verb agreement, meaning the subject and the verb must match as either singular or plural words. If the subject is singular, the verb must also be singular; if the subject is plural, the verb must be plural.
I conjugated the verb "to give" below relative to the subject pronoun. Generally, if it's 3rd person singular, add an "s" for regular (vs. irregular) verbs. See below:
1st person singular: I give 2nd person singular: you give 3rd person singular: she/he/it gives
1st person plural: we give 2nd person plural: you give 3rd person plural: they give