| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [conj] it [is] [verb] | 224 |
|
| 2 | [be] [v-ing] [conj] [pron] [is] [verb] | 46 |
|
| 3 | [be] [v-ing] [conj] it [be] [verb] | 28 |
|
