| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [be] [vb pp] [prep] [v-ing] | 46 |
|
| 2 | [conj] [pron] [be] [vb pp] for [v-ing] | 30 |
|
| 3 | [conj] it [be] [vb pp] for [verb] | 15 |
|
| 4 | [conj] it [be] [verb] for [v-ing] | 8 |
|
