| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] at [art] [noun sg] | 142 |
|
| 2 | [v-ing] at [art] [adj -er] [noun sg] | 63 |
|
| 3 | is [v-ing] [art] [adj -er] [noun sg] | 24 |
|
| 4 | is at [art] [adj -er] [noun sg] | 19 |
|
| 5 | is [v-ing] at [art] [adj -er] | 6 |
|
