| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [Wh adv] it happen | 22 |
|
| 2 | be [adv] it happen | 22 |
|
| 3 | [be] [adv] it happen | 22 |
|
| 4 | [be] [adv] it happened | 17 |
|
| 5 | [is] [adv] it happen | 16 |
|
| 6 | [be] how it happen | 15 |
|
| 7 | [be] how it happen | 15 |
|
| 8 | 's [adv] it happen | 10 |
|
| 9 | is [adv] it happen | 6 |
|
| 10 | [was/were] [adv] it happen | 5 |
|
| 11 | [be] [adv] it happens | 5 |
|
