| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] least five [noun pl] ' | 8 |
|
| 2 | at least five [noun pl] ' | 8 |
|
| 3 | [prep] least five [noun pl] ' | 8 |
|
| 4 | [prep] least five years ' | 7 |
|
