| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [vb pp] | 5412 |
|
| 2 | [v-ing] [conj] it [is] | 571 |
|
| 3 | [v-ing] it [is] [vb pp] | 31 |
|
| 4 | [v-ing] [conj] [is] [vb pp] | 12 |
|
