| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] [prep] | 3667 |
|
| 2 | [adv] [verb] [prep] [adj -er] | 707 |
|
| 3 | could [verb] [prep] [adj -er] | 52 |
|
| 4 | could [adv] [verb] [adj -er] | 25 |
|
