In terms of function, sentences can be classified as declarative (making a statement), interrogative (asking a question), imperative (giving a command), or exclamatory (expressing strong feeling).
| DECLARATIVE | He sings with the Grace Church Boys‘ Choir. |
| INTERROGATIVE | How long has he sung with them? |
| IMPERATIVE | Comb his hair before the performance starts. |
| EXCLAMATORY | What voices those boys have! |