| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] about twenty | 122 |
|
| 2 | for about twenty | 33 |
|
| 3 | of about twenty | 28 |
|
| 4 | with about twenty | 13 |
|
| 5 | to about twenty | 10 |
|
| 6 | at about twenty | 9 |
|
| 7 | after about twenty | 9 |
|
| 8 | in about twenty | 6 |
|
