| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [vb pp] at the back | 14 |
|
| 2 | are [vb pp] at [art] back | 14 |
|
| 3 | are [vb pp] at the back | 14 |
|
| 4 | are given at [art] back | 6 |
|
