| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] build up over a | 8 |
|
| 2 | be build up over a | 8 |
|
| 3 | build up over a [noun sg] | 9 |
|
| 4 | build up over a [noun] | 9 |
|
| 5 | build up over a period | 5 |
|
| 6 | build up over a period | 5 |
|
