| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] at least | 294 |
|
| 2 | [vb pp] [to-vb] at least | 76 |
|
| 3 | require [to-vb] at least | 11 |
|
| 4 | required [to-vb] at [adv] | 10 |
|
| 5 | required [to-vb] [prep] least | 9 |
|
| 6 | required [verb] at least | 9 |
|
| 7 | required [to-vb] at [adv] | 9 |
|
| 8 | required [to-vb] at least | 9 |
|
| 9 | required [to-vb] at least | 9 |
|
| 10 | required [to-vb] [prep] least | 9 |
|
