| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] it [was/were] [v-ing] [pron] [noun] | 15 |
|
| 2 | [vb past] it [be] [v-ing] [pron] [noun] | 15 |
|
| 3 | [vb past] it was [v-ing] [pron] [noun] | 15 |
|
| 4 | [vb past] it be [v-ing] [pron] [noun] | 15 |
|
