| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] [prep] | 14185 |
|
| 2 | they [be] [prep] | 6613 |
|
| 3 | [vb past] [be] [prep] | 4611 |
|
| 4 | they [vb past] [be] | 3177 |
|
