| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [conj] [pron] [be] [v-ing] | 242 |
|
| 2 | is [conj] it [be] [verb] | 104 |
|
| 3 | be [conj] it [be] [v-ing] | 38 |
|
| 4 | [be] [conj] it [be] [v-ing] | 38 |
|
| 5 | [is] [conj] it [be] [v-ing] | 24 |
|
