| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [pron] [adv] [vb infin] [noun sg] | 61 |
|
| 2 | could [pron] [adv] [vb infin] [noun] | 31 |
|
| 3 | could [pron] [adv] [verb] [noun sg] | 13 |
|
| 4 | could [pron] [adv] [vb infin] [noun sg] | 13 |
|
