| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] at least the [adj] century | 17 |
|
| 2 | [prep] at least the [adj] century | 17 |
|
| 3 | since at least the [adj] century | 5 |
|
| 4 | since at least [art] [adj] century | 5 |
|
| 5 | since [prep] least the [adj] century | 5 |
|
| 6 | since at least the [adj] [noun] | 5 |
|
| 7 | since at least [art] [adj] century | 5 |
|
| 8 | since at [adv] the [adj] century | 5 |
|
| 9 | since at least the [adj] [noun sg] | 5 |
|
| 10 | since at least the [adj] century | 5 |
|
| 11 | since at least the [adj] century | 5 |
|
| 12 | since [prep] least the [adj] century | 5 |
|
| 13 | since at least the [adj] century | 5 |
|
