| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] at [art] [noun] | 1683 |
|
| 2 | [be] [v-ing] at [art] [noun sg] | 1415 |
|
| 3 | [be] [verb] at [art] time | 491 |
|
| 4 | [be] [v-ing] [prep] [art] time | 136 |
|
| 5 | [be] [v-ing] [prep] [art] time | 136 |
|
| 6 | [be] [v-ing] at [art] time | 98 |
|
| 7 | [be] [v-ing] at [art] time | 97 |
|
