| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it [is] [adv] | 4723 |
|
| 2 | it [is] [adv] [v-ing] | 2153 |
|
| 3 | but it [is] [v-ing] | 218 |
|
| 4 | but [is] [adv] [v-ing] | 67 |
|
