| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [verb] [prep] a [noun sg] | 2265 |
|
| 2 | are [v-ing] [prep] a [noun sg] | 531 |
|
| 3 | be working [prep] a [noun sg] | 282 |
|
| 4 | [be] working [prep] a [noun sg] | 282 |
|
| 5 | are working [prep] [art] [noun sg] | 87 |
|
| 6 | are working [prep] [art] [noun sg] | 87 |
|
| 7 | [am/are] working [prep] a [noun sg] | 57 |
|
| 8 | are working [prep] a [noun sg] | 37 |
|
| 9 | are work [prep] a [noun sg] | 35 |
|
| 10 | are working [prep] a [noun] | 34 |
|
