| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | built up [prep] [art] [adj] | 36 |
|
| 2 | been built [prep] [art] [adj] | 34 |
|
| 3 | been built up [prep] [art] | 29 |
|
| 4 | been up [prep] [art] [adj] | 8 |
|
