| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [be] [art] | 885 |
|
| 2 | but [v-ing] [art] | 607 |
|
| 3 | but [be] [art] | 414 |
|
| 4 | but [v-ing] [be] | 46 |
|
