| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been at [noun sg] | 243 |
|
| 2 | [been] at work | 49 |
|
| 3 | [been] at home | 43 |
|
| 4 | [been] at school | 35 |
|
| 5 | [been] at war | 17 |
|
| 6 | [been] at risk | 10 |
|
| 7 | [been] at college | 6 |
|
| 8 | [been] at stake | 6 |
|
| 9 | [been] at fault | 5 |
|
| 10 | [been] at sea | 5 |
|
| 11 | [been] at university | 5 |
|
