| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been build up [prep] | 85 |
|
| 2 | [vb -s] been build [prep] | 70 |
|
| 3 | [vb -s] been build up | 60 |
|
| 4 | [vb -s] been up [prep] | 40 |
|
| 5 | [vb -s] build up [prep] | 31 |
|
