| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] 15 month | 15 |
|
| 2 | [be] [vb pp] [prep] 15 month | 15 |
|
| 3 | [was/were] [vb pp] [prep] 15 month | 9 |
|
| 4 | was [vb pp] [prep] 15 month | 8 |
|
| 5 | [vb pp] [prep] 15 month [prep] | 8 |
|
| 6 | [vb pp] [prep] 15 month [prep] | 8 |
|
