| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back [conj] [verb] up [prep] | 14 |
|
| 2 | [vb past] back [conj] [verb] up [prep] | 9 |
|
| 3 | back [conj] [verb] up [prep] [art] | 8 |
|
| 4 | back [conj] [verb] up [prep] [art] | 8 |
|
| 5 | back [conj] [verb] up [prep] the | 8 |
|
| 6 | back [conj] [verb] up [prep] the | 8 |
|
| 7 | back [conj] [verb] up [prep] [pron] | 6 |
|
