| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] minimum of [num] years | 42 |
|
| 2 | a minimum [prep] [num] years | 41 |
|
| 3 | [art] minimum [prep] two years | 10 |
|
| 4 | [art] minimum [prep] three years | 6 |
|
| 5 | [art] minimum [prep] five years | 5 |
|
