| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [pron] [adv] | 7901 |
|
| 2 | [pron] [adv] maintain | 92 |
|
| 3 | but [pron] maintain | 25 |
|
| 4 | but [adv] maintain | 14 |
|
