| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [adv prt] the | 247 |
|
| 2 | [vb infin] [adv prt] at the | 198 |
|
| 3 | could [vb infin] at the | 85 |
|
| 4 | could [vb infin] [adv prt] at | 44 |
|
