| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [vb pp] [prep] a number of | 51 |
|
| 2 | has [vb pp] in a number of | 16 |
|
| 3 | has [vb pp] on a number of | 11 |
|
| 4 | has [vb pp] for a number of | 8 |
|
| 5 | has worked [prep] a number of | 5 |
|
| 6 | has [vb pp] to a number of | 5 |
|
