| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] [adv] [prep] [art] [noun] | 3960 |
|
| 2 | [modal v] [vb infin] [adv] [prep] [art] [noun] | 3960 |
|
| 3 | could [verb] [adv] [prep] [art] [noun] | 431 |
|
| 4 | could [vb infin] [adv] [prep] [art] [noun] | 430 |
|
