| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be based [prep] a [no cls] [unc] | 5 |
|
| 2 | [be] based [prep] a [no cls] [unc] | 5 |
|
| 3 | based [prep] a [adj] [no cls] [unc] | 6 |
|
| 4 | based [prep] a [num] [no cls] [unc] | 5 |
|
