| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it [is] [v-ing] | 655 |
|
| 2 | [adv] it [is] [v-ing] | 461 |
|
| 3 | so [pron] [is] [v-ing] | 280 |
|
| 4 | so it [is] [verb] | 154 |
|
| 5 | so it [be] [v-ing] | 116 |
|
| 6 | so it [is] [v-ing] | 110 |
|
