| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] about [adj] year | 104 |
|
| 2 | [noun sg] about [num] year | 104 |
|
| 3 | [noun sg] about twenty [noun] | 29 |
|
| 4 | [noun sg] [adv] twenty year | 15 |
|
| 5 | [noun] about twenty year | 8 |
|
| 6 | [noun sg] about twenty year | 5 |
|
