| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] build up a [noun] | 8 |
|
| 2 | they [vb base] build up a [noun] | 8 |
|
| 3 | they have build up a [noun] | 7 |
|
| 4 | they have build up a [noun] | 6 |
|
