| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [prep] | 1252 |
|
| 2 | could [prep] | 1252 |
|
| 3 | [vb mod] through | 22 |
|
| 4 | [modal v] through | 22 |
|
| 5 | could through | 7 |
|
| 6 | could through | 7 |
|
