How to use different of Verb 3 part. In V1 use in present or habit how to use it that is subject follow by verb1 add s and es in singular such as I reads book. In plural use subject followed by verb infinitive such as we read book. If you one to talk about the action you use subject with is,am,are follow by verbing such as you are listening to present. In verb2 used in past by the action already complete. How to use v2 is subject followed by verb2 suck as I ate lunch at 1 p.m.. In verb3 use in part continued to the present how to use verb3 is subject with has/have followed by verb 3 suck as she has slept