| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] happen to be | 180 |
|
| 2 | just happen to be | 110 |
|
| 3 | [adv] happened to be | 74 |
|
| 4 | [adv] happens to be | 68 |
|
| 5 | also happen to be | 46 |
|
| 6 | [adv] happen to be | 29 |
|
| 7 | [adv] happened to be | 6 |
|
