| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv prt] [prep] a | 17252 |
|
| 2 | could [verb] [adv prt] [prep] | 1221 |
|
| 3 | could [verb] [prep] a | 1099 |
|
| 4 | could [verb] [adv prt] a | 162 |
|
