| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [v-ing] to be | 7 |
|
| 2 | [vb past] [be] [v-ing] [prep] be | 7 |
|
| 3 | [vb past] [be] [v-ing] to be | 7 |
|
| 4 | [vb past] be [v-ing] [prep] be | 7 |
|
| 5 | [vb past] [was/were] [v-ing] [prep] be | 5 |
|
| 6 | [vb past] was [v-ing] [prep] be | 5 |
|
| 7 | [vb past] [be] going [prep] be | 5 |
|
