| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb base] up a | 57 |
|
| 2 | [vb base] built up a | 34 |
|
| 3 | they [vb base] built up | 21 |
|
| 4 | they [vb base] built a | 6 |
|
