| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [pron] [is] | 398 |
|
| 2 | be [v-ing] but [pron] | 124 |
|
| 3 | be but [pron] [is] | 43 |
|
| 4 | [v-ing] but [pron] [is] | 29 |
|
