The three persons as subject pronouns, singular and plural

1st person singular

I get a headache with deadlines. 

2nd person singular

Jack, won't you join our discussion? You have good suggestions!.

3rd person singular

John loves me! He really loves me!

1st person plural

You and I have to talk! Perhaps we should eat out tonight!

2nd person plural

Hey. Betty and Ruth! You should check out the chicken! And the ribs are great, too!  

3rd person plural

The students are getting wet! It's lucky they have an umbrella.