| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back on [adj] [noun pl] | 65 |
|
| 2 | back on [adj] [noun pl] | 34 |
|
| 3 | back on [det] [noun pl] | 21 |
|
| 4 | back on [adj] terms | 10 |
|
| 5 | back on [num] [noun pl] | 8 |
|
| 6 | back on [adj] days | 8 |
|
| 7 | back on level [noun pl] | 8 |
|
| 8 | back on those [noun pl] | 8 |
|
| 9 | back on those [noun pl] | 8 |
|
| 10 | back on level [noun pl] | 8 |
|
