| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb base] [pron] could [verb] | 917 |
|
| 2 | they [vb base] [pron] [modal v] [verb] | 281 |
|
| 3 | they [vb base] [pron] [vb mod] [verb] | 281 |
|
| 4 | they [verb] [pron] could [verb] | 90 |
|
| 5 | they [vb base] [pron] could [verb] | 20 |
|
