| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [conj] it is [verb] | 211 |
|
| 2 | [prep] [noun] [conj] [pron] is [v-ing] | 80 |
|
| 3 | [prep] [noun] [conj] it be [v-ing] | 78 |
|
| 4 | [prep] [noun] [conj] it [be] [v-ing] | 78 |
|
| 5 | [prep] [noun] [conj] it [is] [v-ing] | 48 |
|
| 6 | [prep] [noun] [conj] it is [v-ing] | 29 |
|
