| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [vb infin] [prep] | 5745 |
|
| 2 | [pron] could [vb infin] [adv] | 2108 |
|
| 3 | [pron] [vb infin] [prep] [adv] | 347 |
|
| 4 | could [vb infin] [prep] [adv] | 255 |
|
| 5 | [pron] could [prep] [adv] | 92 |
|
