| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] at an [adj] [noun sg] | 78 |
|
| 2 | be [verb] at an [adj] [noun sg] | 74 |
|
| 3 | be [vb pp] at an [adj] [noun sg] | 71 |
|
| 4 | be [verb] at an early [noun sg] | 37 |
|
| 5 | be [verb] at an early [noun sg] | 33 |
|
| 6 | be [verb] at an [adj] stage | 29 |
|
| 7 | be [verb] at an [adj] rate | 10 |
|
| 8 | be [v-ing] at an [adj] [noun sg] | 7 |
|
| 9 | be taken at an [adj] [noun sg] | 6 |
|
| 10 | be take at an [adj] [noun sg] | 6 |
|
| 11 | be [verb] at an [adj] cost | 5 |
|
