| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] it is | 2595 |
|
| 2 | [conj] it is [v-ing] | 842 |
|
| 3 | [adv] it is [v-ing] | 169 |
|
| 4 | [adv] [conj] is [v-ing] | 38 |
|
