| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [be] [adv] | 3294 |
|
| 2 | [v-ing] [be] [adv] | 1335 |
|
| 3 | [v-ing] but [adv] | 147 |
|
| 4 | [v-ing] but [be] | 15 |
|
