| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] only | 21829 |
|
| 2 | [vb infin] only | 1666 |
|
| 3 | happen [adv] | 656 |
|
| 4 | happen [adv] | 634 |
|
| 5 | happen only | 54 |
|
| 6 | happen only | 14 |
|
