| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] at the [noun sg] | 44 |
|
| 2 | have been at the [noun sg] | 44 |
|
| 3 | have [been] at the forefront | 11 |
|
| 4 | have [been] at the heart | 7 |
|
| 5 | have [been] at the centre | 6 |
|
