| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] to [be] | 1989 |
|
| 2 | they [vb past] to [be] | 675 |
|
| 3 | [pron] happened to [be] | 236 |
|
| 4 | [pers pn] happened to [be] | 151 |
|
| 5 | they happen to [be] | 47 |
|
| 6 | they happened to [be] | 17 |
|
| 7 | they happened [prep] [be] | 17 |
|
