| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] to be [verb] at the | 43 |
|
| 2 | [vb past] to [be] [verb] at the | 43 |
|
| 3 | [vb past] to be [verb] at the | 42 |
|
| 4 | [vb past] to [be] [verb] at the | 42 |
|
| 5 | [vb past] to [be] [vb pp] at the | 35 |
|
| 6 | had to [be] [verb] at the | 16 |
|
| 7 | [vb past] to [be] [v-ing] at the | 8 |
|
