| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [verb] [adv prt] a | 3228 |
|
| 2 | could [verb] [verb] [adv prt] | 408 |
|
| 3 | could [verb] [verb] a | 397 |
|
| 4 | could [verb] [adv prt] a | 162 |
|
