| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pers pn] used to [be] | 334 |
|
| 2 | [subord] [pers pn] [modal v] to [be] | 304 |
|
| 3 | [subord] [pron] used to [be] | 254 |
|
| 4 | [subord] [pers pn] used [prep] [be] | 227 |
|
