| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [to-vb] [art] [noun sg] | 506 |
|
| 2 | is [v-ing] at [art] [noun sg] | 142 |
|
| 3 | [v-ing] [to-vb] at [art] [noun sg] | 118 |
|
| 4 | is [to-vb] at [art] [noun sg] | 52 |
|
| 5 | is [v-ing] [to-vb] at [art] | 8 |
|
