| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] which [verb] [prep] a | 209 |
|
| 2 | [noun pl] could [verb] [prep] a | 89 |
|
| 3 | [noun pl] which could [verb] [prep] | 72 |
|
| 4 | which could [verb] [prep] a | 40 |
|
| 5 | [noun pl] which could [verb] a | 16 |
|
