| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [conj] to be | 340 |
|
| 2 | [noun sg] used to be | 278 |
|
| 3 | [conj] used to be | 131 |
|
| 4 | [noun sg] [conj] used to | 53 |
|
