| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been at the [noun sg] | 71 |
|
| 2 | has [been] at the [noun sg] | 71 |
|
| 3 | has [been] at the forefront | 15 |
|
| 4 | has [been] at the centre | 13 |
|
| 5 | has [been] at the heart | 6 |
|
