| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [prep] about 20 | 8 |
|
| 2 | [vb base] [prep] about 20 | 8 |
|
| 3 | [vb base] for about 20 | 6 |
|
| 4 | [vb base] for about 20 | 6 |
|
| 5 | [vb base] about 20 [noun pl] | 5 |
|
| 6 | [vb base] about 20 [noun] | 5 |
|
