| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [conj] it is [v-ing] | 7 |
|
| 2 | [prep] [v-ing] [conj] it is [v-ing] | 7 |
|
| 3 | [v-ing] [conj] it is [adv] [v-ing] | 9 |
|
| 4 | [v-ing] [conj] it is [adv] [v-ing] | 6 |
|
