| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [conj] it be [v-ing] | 127 |
|
| 2 | [prep] [conj] it [be] [v-ing] | 127 |
|
| 3 | [prep] [conj] [pron] is [v-ing] | 58 |
|
| 4 | [prep] [conj] it [is] [v-ing] | 49 |
|
| 5 | [prep] [conj] it is [verb] | 37 |
|
