| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] [v-ing] | 9714 |
|
| 2 | [is] [adv] but | 120 |
|
| 3 | [adv] [v-ing] but | 89 |
|
| 4 | [is] [v-ing] but | 51 |
|
