| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun sg] of years [prep] | 125 |
|
| 2 | [noun sg] of years [prep] [art] | 53 |
|
| 3 | a [noun sg] of [prep] [art] | 51 |
|
| 4 | a [noun sg] of years [art] | 14 |
|
