Write the correct form of the given verbs in the 3rd

We should add the ending "-s" or "-es" to verbs to form the 3rd person singular in the Simple Present Tense.

Usually, we add the ending "-s", but after o, s, z, x, ch, tch, sh, the ending "-es" is added.

1. I do. -- He does.

2. I walk. -- He walks.

3. I go. -- He goes.