| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] [vb pp] [prep] | 2444 |
|
| 2 | [adv] [vb pp] back [prep] | 457 |
|
| 3 | has [vb pp] back [prep] | 104 |
|
| 4 | has [adv] [vb pp] back | 43 |
|
