| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] course [pron] [modal v] | 1141 |
|
| 2 | [prep] [pron] [modal v] never | 61 |
|
| 3 | [prep] course [pron] never | 27 |
|
| 4 | course [pron] [modal v] never | 9 |
|
