| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it [be] [prep] [v-ing] | 91 |
|
| 2 | [adv] [pron] [was/were] [prep] [v-ing] | 14 |
|
| 3 | [adv] it [was/were] [prep] [v-ing] | 5 |
|
| 4 | [adv] it [was/were] [prep] [verb] | 5 |
|
