| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] about [adj] years | 158 |
|
| 2 | [noun] [adv] 20 years | 35 |
|
| 3 | [noun] [adv] 20 years | 35 |
|
| 4 | [noun] about 20 [noun] | 26 |
|
| 5 | [noun] about 20 [noun pl] | 25 |
|
| 6 | [noun] about 20 years | 9 |
|
| 7 | [noun] about 20 year | 9 |
|
