| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] [adv] a | 48 |
|
| 2 | [adv] [vb infin] [adv] for a | 40 |
|
| 3 | could [vb infin] [adv] for a | 37 |
|
| 4 | could [adv] [vb infin] for a | 18 |
|
| 5 | could [adv] [vb infin] [adv] for | 18 |
|
