El uso de la tercera persona(THIRD PERSON) en el presente en la forma afirmativa.

 

The third person is built with the subject pronouns ( he, she, it) with these endings ( s, es, ies) at the end of the verb.

To understand it, we need to respect these rules:

Rule#1

Generally, we out S at the end  of the verb to make the third peron.

Ex: eat---eats

      drink--- drinks

      call--- calls

Rule#2

When the verbs end by these endings ( ss, ch, sh, x) the S changes into ES. 

Ex: watch---watches

       kiss---kisses

       push---pushes

       fix---fixes

Rules #3

If the verbs end by Y, we have 2 possiblities:

Pos 1: if Y is before a consonant, we change Y into IES.

Ex: study---studies

       try---tries 

      dry---dries

Pos 2: if Y is before a vowel, we don't change the Y, we just add S.

Ex: play---plays

      say---says

Rule #4

With the both verbs: TO BE and TO HAVE, we change the forn¿ms completely.

Ex: to be---is

       to have---has