| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] at a certain [noun] | 10 |
|
| 2 | [be] [verb] at a certain [noun] | 10 |
|
| 3 | [verb] [verb] at a certain [noun] | 6 |
|
| 4 | [verb] [to-vb] at a certain [noun] | 6 |
|
| 5 | [verb] [verb] at a certain [noun] | 6 |
|
| 6 | [verb] at a certain [noun] [prep] | 8 |
|
| 7 | [verb] at a certain [noun] [prep] | 8 |
|
| 8 | [verb] at a certain [noun] [conj] | 5 |
|
