As you can see in the table at the bottom, there is much similarity across all 3 groups. For instance, the present tense of all 3 groups ends in:
- "o" in the first person singular
- "i" in the second person singular
- "iamo" in the first person plural.
So, anytime someone mentions that "I am doing something", you'll hear the stem + "o" sound (studio = I am studying; leggo = I am reading; guardo = "I watch"). Similarly, anytime you hear the "iamo" sound (studiamo = we are studying; leggiamo = we are reading; guardiamo = we watch), your brain should automatically sense that "we" are doing something or "let's" do something.