| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | least five years ' [noun sg] | 6 |
|
| 2 | least five years ' [noun sg] | 6 |
|
| 3 | least five years [unc] [noun sg] | 6 |
|
| 4 | least five years ['s] [noun sg] | 6 |
|
