| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [adv] [verb] | 1740 |
|
| 2 | [conj] it [is] [adv] [v-ing] | 301 |
|
| 3 | [conj] it [is] [adv] happening | 16 |
|
| 4 | [conj] [pron] [is] [adv] happening | 13 |
|
| 5 | [conj] it [be] [adv] happening | 10 |
|
| 6 | [conj] it [is] [adv] happen | 10 |
|
