| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [adv] [adv] [subord] [noun] | 69 |
|
| 2 | could [vb infin] [adv] [adv] [conj] [noun] | 14 |
|
| 3 | could [vb infin] [adv] [adv] [subord] [noun] | 13 |
|
| 4 | could [verb] [adv] [adv] [subord] [noun] | 13 |
|
