io, tu, lui ... (often dropped)
io, tu, lui/lei, noi, voi, loro.
| Person | Singular | Plural |
|---|---|---|
| 1st | io | noi |
| 2nd | tu | voi |
| 3rd m | lui | loro |
| 3rd f | lei | loro |
| formal | Lei | — |
The verb ending shows the subject, so the pronoun is dropped.
Use Lei (capitalized) for politeness; it takes the 3rd-person verb.