| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if you happen to be [v-ing] | 5 |
|
| 2 | if you happen to be [v-ing] | 5 |
|
| 3 | if you happen to [be] [v-ing] | 5 |
|
| 4 | if you happen to [be] [v-ing] | 5 |
|
