| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [vb past] [to-vb] back [art] | 11 |
|
| 2 | [noun prp] had [verb] back [art] | 10 |
|
| 3 | [noun prp] [vb past] [verb] back the | 8 |
|
| 4 | [noun prp] [vb past] [verb] back a | 8 |
|
| 5 | [noun prp] [vb past] [vb pp] back [art] | 6 |
|
