| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [pron] [adv] | 1450 |
|
| 2 | [vb infin] [pron] [adv] for | 469 |
|
| 3 | could [vb infin] [adv] for | 154 |
|
| 4 | could [vb infin] [pron] for | 148 |
|
