| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] [prep] a | 1231 |
|
| 2 | they [vb past] [prep] [noun pl] | 443 |
|
| 3 | [vb past] [prep] a [noun pl] | 121 |
|
| 4 | they [vb past] a [noun pl] | 13 |
|
