| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] [prep] a | 329 |
|
| 2 | they could [adv] [verb] [prep] | 212 |
|
| 3 | they [adv] [verb] [prep] a | 150 |
|
| 4 | they could [adv] [verb] a | 93 |
|
| 5 | they could [verb] [prep] a | 53 |
|
