| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] happen to be [v-ing] | 6 |
|
| 2 | [adv] [pron] happen to be [v-ing] | 6 |
|
| 3 | [adv] [pers pn] happen to be [v-ing] | 6 |
|
