| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been at the forefront | 21 |
|
| 2 | [noun prp] have been at the forefront | 13 |
|
| 3 | [pron] have been at the forefront | 7 |
|
| 4 | [noun pl] have been at the forefront | 5 |
|
| 5 | have been at the forefront [prep] | 32 |
|
| 6 | have been at the forefront [prep] | 32 |
|
| 7 | have been at the forefront of | 25 |
|
| 8 | have been at the forefront of | 25 |
|
| 9 | have been at the forefront in | 7 |
|
| 10 | have been at the forefront in | 7 |
|
