| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adv] [noun] | 841 |
|
| 2 | [art] back [noun] | 87 |
|
| 3 | a [adv prt] [noun] | 78 |
|
| 4 | a back [noun] | 74 |
|
