| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] they back on | 38 |
|
| 2 | [vb -s] they back [prep] | 24 |
|
| 3 | [vb -s] they back [prep] | 24 |
|
| 4 | [vb -s] [pron] back on | 14 |
|
| 5 | [vb -s] they [adv] on | 11 |
|
| 6 | [vb -s] they [adv prt] on | 7 |
|
| 7 | [vb -s] they back on | 6 |
|
| 8 | [vb -s] they back on | 6 |
|
