| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [prep] [v-ing] [to-vb] | 64 |
|
| 2 | it [be] [prep] [v-ing] [to-vb] | 64 |
|
| 3 | it [is] [prep] [v-ing] [to-vb] | 46 |
|
| 4 | it 's [prep] [v-ing] [verb] | 18 |
|
| 5 | it 's [prep] [verb] [to-vb] | 17 |
|
| 6 | it 's [prep] [v-ing] [to-vb] | 16 |
|
| 7 | [pers pn] 's [prep] [v-ing] [to-vb] | 16 |
|
| 8 | it 's [prep] [v-ing] [to-vb] | 16 |
|
| 9 | [pron] 's [prep] [v-ing] [to-vb] | 16 |
|
