| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [v-ing] [adj] [noun sg] | 21 |
|
| 2 | it is [v-ing] [det] [noun sg] | 16 |
|
| 3 | it is [v-ing] that [noun sg] | 5 |
|
| 4 | it is [v-ing] that [noun sg] | 5 |
|
