| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] happen [prep] be [prep] | 97 |
|
| 2 | [pron] happen [prep] [noun] [prep] | 79 |
|
| 3 | [pron] [prep] be [noun] [prep] | 79 |
|
| 4 | [pron] happen [prep] be [noun] | 32 |
|
| 5 | happen [prep] be [noun] [prep] | 13 |
|
