| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who has [verb] [adv] | 306 |
|
| 2 | who has [verb] [adv prt] | 123 |
|
| 3 | [pron] has [verb] back | 61 |
|
| 4 | who [verb] [verb] back | 54 |
|
| 5 | who have [verb] back | 37 |
|
| 6 | who [vb -s] [verb] back | 12 |
|
| 7 | who has [verb] back | 5 |
|
