| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] years of [noun] | 382 |
|
| 2 | about [adj] [noun] of [noun] | 315 |
|
| 3 | about [adj] [noun pl] of [noun] | 245 |
|
| 4 | about [adj] years [prep] [noun] | 45 |
|
| 5 | about [adj] year of [noun] | 30 |
|
