| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years of [pron] [noun] | 393 |
|
| 2 | twenty [noun] of [pron] [noun] | 22 |
|
| 3 | twenty years [prep] [pron] [noun] | 19 |
|
| 4 | twenty [noun pl] of [pron] [noun] | 18 |
|
| 5 | twenty year of [pron] [noun] | 10 |
|
