| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at least since the [adj] [noun] | 6 |
|
| 2 | at least since the [num ord] [noun] | 5 |
|
| 3 | at least since the [noun] [prep] | 8 |
|
| 4 | at least since the [noun] [prep] | 8 |
|
| 5 | at least since the [noun] of | 7 |
|
| 6 | at least since the [noun] of | 7 |
|
