| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [vb mod] [pron] [adv] | 128 |
|
| 2 | but [modal v] [pron] [adv] | 128 |
|
| 3 | [conj] could [pron] [adv] | 61 |
|
| 4 | but could [pron] [adv] | 20 |
|
