| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [indef pn] have | 527 |
|
| 2 | [indef pn] could have | 275 |
|
| 3 | [adv] [indef pn] could | 198 |
|
| 4 | [adv] could have | 122 |
|
