| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a [noun sg] [num] | 437 |
|
| 2 | [prep] a [noun sg] [num] years | 104 |
|
| 3 | [noun sg] [prep] [noun sg] [num] years | 46 |
|
| 4 | [noun sg] [prep] a [num] years | 42 |
|
