| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [v-ing] at a | 136 |
|
| 2 | be looking at a | 128 |
|
| 3 | is [v-ing] at a | 84 |
|
| 4 | are [v-ing] at a | 64 |
|
| 5 | be [v-ing] at a | 53 |
|
| 6 | been [v-ing] at a | 47 |
|
| 7 | were [v-ing] at a | 41 |
|
| 8 | be sitting at a | 36 |
|
| 9 | 're [v-ing] at a | 34 |
|
| 10 | be running at a | 25 |
|
| 11 | be growing at a | 21 |
|
| 12 | be speaking at a | 19 |
|
| 13 | be staying at a | 14 |
|
| 14 | be increasing at a | 13 |
|
| 15 | be working at a | 11 |
|
| 16 | be going at a | 10 |
|
| 17 | be staring at a | 9 |
|
| 18 | be standing at a | 9 |
|
| 19 | be aiming at a | 8 |
|
| 20 | 's [v-ing] at a | 8 |
|
| 21 | be trading at a | 7 |
|
| 22 | be operating at a | 6 |
|
| 23 | 'm [v-ing] at a | 6 |
|
| 24 | be occurring at a | 5 |
|
| 25 | be expanding at a | 5 |
|
