| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] happened to [be] a | 7 |
|
| 2 | [subord] [pron] happened to [be] a | 6 |
|
| 3 | [pron] happened to [be] a [noun] | 14 |
|
| 4 | [pron] happened to [be] a [noun sg] | 13 |
|
