| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have developed a number | 6 |
|
| 2 | have developed a number [prep] | 8 |
|
| 3 | have developed a number [prep] | 8 |
|
| 4 | have developed a number of | 8 |
|
| 5 | have developed a number of | 8 |
|
