| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back the [num ord] | 51 |
|
| 2 | back [art] next | 36 |
|
| 3 | back a [num ord] | 7 |
|
| 4 | back [art] first | 6 |
|
| 5 | back [art] second | 6 |
|
| 6 | back [art] last | 5 |
|
