| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [conj] it [is] [adv] | 1994 |
|
| 2 | [v-ing] [conj] it [be] [adv] | 292 |
|
| 3 | [v-ing] [conj] [pron] [is] [adv] | 251 |
|
