| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [prep] [pers pn] at | 95 |
|
| 2 | could [verb] [prep] [pers pn] [prep] | 89 |
|
| 3 | could [verb] [prep] [pers pn] [prep] | 89 |
|
| 4 | could [verb] [prep] [pron] at | 10 |
|
| 5 | could [verb] [prep] [pers pn] at | 7 |
|
