| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] at an [adj] [noun sg] | 44 |
|
| 2 | be [v-ing] at an [adj] rate | 21 |
|
| 3 | was [v-ing] at an [adj] [noun sg] | 13 |
|
| 4 | is [v-ing] at an [adj] [noun sg] | 11 |
|
| 5 | be [v-ing] at an alarming [noun sg] | 9 |
|
| 6 | be [v-ing] at an alarming [noun sg] | 9 |
|
| 7 | were [v-ing] at an [adj] [noun sg] | 8 |
|
| 8 | be [v-ing] at an annual [noun sg] | 7 |
|
| 9 | be [v-ing] at an annual [noun sg] | 7 |
|
| 10 | be [v-ing] at an [adj] [noun sg] | 7 |
|
| 11 | be [v-ing] at an open [noun sg] | 5 |
|
| 12 | be growing at an [adj] [noun sg] | 5 |
|
| 13 | be [v-ing] at an open [noun sg] | 5 |
|
