| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was at the [noun pl] | 37 |
|
| 2 | be at the [noun pl] | 22 |
|
| 3 | is at the [noun pl] | 15 |
|
| 4 | were at the [noun pl] | 15 |
|
| 5 | been at the [noun pl] | 10 |
|
| 6 | be at the controls | 8 |
|
| 7 | are at the [noun pl] | 7 |
|
