| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [v-ing] [to-vb] [pron] | 171 |
|
| 2 | it be [prep] [v-ing] [pron] | 167 |
|
| 3 | it be [prep] [v-ing] [to-vb] | 64 |
|
| 4 | be [prep] [v-ing] [to-vb] [pron] | 18 |
|
| 5 | it be [prep] [to-vb] [pron] | 12 |
|
