| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] at a [noun] | 280 |
|
| 2 | be [v-ing] at a [noun sg] | 264 |
|
| 3 | be [v-ing] [prep] a desk | 12 |
|
| 4 | be [v-ing] [prep] a desk | 12 |
|
| 5 | be [v-ing] at [art] desk | 9 |
|
| 6 | be [v-ing] at [art] desk | 9 |
|
| 7 | be [verb] at a desk | 7 |
|
| 8 | be [v-ing] at a desk | 6 |
|
| 9 | [be] [v-ing] at a desk | 6 |
|
| 10 | be [v-ing] at a desk | 6 |
|
| 11 | be [v-ing] at a desk | 6 |
|
