| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] happened [prep] be [v-ing] | 9 |
|
| 2 | [adv] happened to be [v-ing] | 9 |
|
| 3 | [adv] happened [prep] be [v-ing] | 9 |
|
| 4 | [adv] happened [prep] be [v-ing] | 9 |
|
| 5 | [adv] happened to be [v-ing] | 9 |
|
| 6 | just happened [prep] be [v-ing] | 8 |
|
| 7 | just happened [prep] be [v-ing] | 8 |
|
