| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they have [verb] up a [noun sg] | 9 |
|
| 2 | they have [vb pp] up a [noun] | 8 |
|
| 3 | they have built up a [noun] | 6 |
|
| 4 | they have build up a [noun] | 6 |
|
