| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] be [vb pp] [prep] | 486 |
|
| 2 | [pron] [vb past] be [vb pp] at | 191 |
|
| 3 | they [verb] be [vb pp] at | 34 |
|
| 4 | they [vb past] be [verb] at | 28 |
|
| 5 | they [vb past] [be] [vb pp] at | 17 |
|
