The number and person of the verb are properties that show its agreement with the subject. Like the sub­ject, the verb has two numbers and three persons.

While in many languages other than English most verbs have different inflectional endings for each number/person pair, English has different forms only for the third person singular in the present tense. The verb to be, however, has different forms for persons and number in both the present and the past tenses.

The first person singular and the first, the second, and the third person plural, of the present tense indicative, in all verbs except the verb to be are alike.

The second person singular is like the first, except in the solemn or ancient style, when it is formed by adding at, or est, to the first person.

The present tense third person singular is formed from the first, by adding s or es. In the ancient style it ends in eth.

For example

Thou lovest me not.
He prayeth best who loveth best.

Verbs ending in y preceded by a consonant, change y into i and add es to form the third person singular.

For example

For the verb try, the third person singular is tries

In all current English, the second person plural of the pronoun and the verb is same as the second person singular. In older forms of English, the plural form of the second person pronoun is thou.

For example

Hubert, you are sad.
Hubert, thou art sad.

Note

There is tendency among modern grammarians and teachers to omit as obsolete the old forms of the second person singular, thee and thou. This is to be regretted.
These forms are used in the prose of past centuries, much of which is still read at the present time. These forms are in all kinds of poetry, ancient and modern, in the Scriptures, in religious books, and especially in prayer.
Current English uses what was once the plural form you for the singular; however, thou and thee should not be ignored.

The imperative mode usually uses only the second person.

For example

Go thou.
(You should) pray.