| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] course [pron] could | 121 |
|
| 2 | [prep] [pron] could [adv] | 107 |
|
| 3 | [prep] course [pron] [adv] | 107 |
|
| 4 | course [pron] could [adv] | 13 |
|
