| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] at the [num ord] [noun] | 734 |
|
| 2 | [noun] at the [adj] opportunity | 64 |
|
| 3 | [noun] [prep] the [num ord] opportunity | 17 |
|
| 4 | [noun] [prep] the [num ord] opportunity | 17 |
|
| 5 | [noun] at the [num ord] opportunity | 16 |
|
| 6 | [noun] at the [num ord] opportunity | 16 |
|
| 7 | [noun] at [art] [num ord] opportunity | 16 |
|
| 8 | [noun] at [art] [num ord] opportunity | 16 |
|
