| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] back | 6805 |
|
| 2 | [v-ing] [pron] back | 744 |
|
| 3 | buy [pron] back | 43 |
|
| 4 | buying [pron] [adv] | 37 |
|
| 5 | buying [pron] [adv prt] | 14 |
|
| 6 | buying [pron] back | 5 |
|
