| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [modal v] [adv] happen | 195 |
|
| 2 | [det] [modal v] never [verb] | 80 |
|
| 3 | [det] [modal v] never [vb infin] | 79 |
|
| 4 | [adj] [modal v] never happen | 19 |
|
| 5 | [det] [modal v] never happen | 18 |
|
