| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [adv] [v-ing] | 301 |
|
| 2 | [be] [conj] it [is] [adv] | 285 |
|
| 3 | [be] [conj] it [is] [v-ing] | 30 |
|
| 4 | [be] it [is] [adv] [v-ing] | 13 |
|
