| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] [to-vb] [det] | 508 |
|
| 2 | they could [verb] [det] | 163 |
|
| 3 | they could [verb] [to-vb] | 119 |
|
| 4 | could [verb] [to-vb] [det] | 77 |
|
