| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [adv] [noun] | 96 |
|
| 2 | [vb mod] [vb infin] [adv] [noun prp] | 86 |
|
| 3 | [modal v] [vb infin] [adv] [noun prp] | 86 |
|
| 4 | could [vb infin] [adv] [noun prp] | 59 |
|
| 5 | could [vb infin] [adv] [noun prp] | 16 |
|
| 6 | could [verb] [adv] [noun prp] | 16 |
|
