Jan 29, 2014

Spelling Rules for Present Simple Third Person Singular in Affirmative Form

We usually add the letter "s" to the base form of the verb in present simple affirmative sentences for the third person singular. However, there are some exceptions.

For example, if the base form of the verb ends in "-sh", "-ch", "-ss", letter "x", letter "z" and vowel "o", we add "-es". 

Moreover, if the base form ends in consonant + letter "y", we change "y" for letter "i" and then, we add "es". Watch out! We don't add "es" if the verb ends in vowel + letter "y". In those cases, we just add an "s". - See more at: http://adoortoenglish.blogspot.com/2012/01/blog-post.html#sthash.vcSFpBkn.dpuf