| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] is [v-ing] [to-vb] at [art] | 5 |
|
| 2 | is [v-ing] [to-vb] at [art] [noun sg] | 6 |
|
| 3 | is [v-ing] [to-vb] at [art] [noun] | 6 |
|
