| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] [det] [noun] | 557 |
|
| 2 | [adv] [vb infin] of [det] [noun] | 100 |
|
| 3 | could [adv] [vb infin] of [det] | 41 |
|
| 4 | could [adv] [vb infin] of [noun] | 21 |
|
| 5 | could [vb infin] of [det] [noun] | 15 |
|
