| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] [pron] [adj] | 468 |
|
| 2 | [modal v] [adv] [vb infin] [pron] [num ord] | 71 |
|
| 3 | [vb mod] [adv] [vb infin] [pron] [num ord] | 71 |
|
| 4 | could [adv] [vb infin] [pron] [num ord] | 14 |
|
| 5 | could [adv] [verb] [pron] [num ord] | 14 |
|
