| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] a [num] | 2044 |
|
| 2 | [vb pp] [prep] a [num] | 959 |
|
| 3 | based [prep] a [adj] | 858 |
|
| 4 | based [prep] [art] [num] | 98 |
|
| 5 | base [prep] a [num] | 23 |
|
