| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happen to be [prep] [noun sg] | 30 |
|
| 2 | happen [prep] be [prep] [noun sg] | 30 |
|
| 3 | happen to be [prep] [noun sg] | 30 |
|
| 4 | happen [prep] be [prep] [noun sg] | 30 |
|
