| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [conj] could | 1031 |
|
| 2 | [noun pl] but [modal v] | 344 |
|
| 3 | [noun pl] but [vb mod] | 344 |
|
| 4 | [noun] but could | 221 |
|
| 5 | [noun pl] but could | 50 |
|
