| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] years of [noun sg] | 654 |
|
| 2 | a [adj] years of [noun sg] | 52 |
|
| 3 | [prep] a [adj] years of | 47 |
|
| 4 | [prep] a [adj] years [noun sg] | 29 |
|
| 5 | [prep] a [adj] of [noun sg] | 19 |
|
