| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [to-vb] [art] [noun sg] | 693 |
|
| 2 | [is] [v-ing] at [art] [noun sg] | 207 |
|
| 3 | [v-ing] [to-vb] at [art] [noun sg] | 118 |
|
| 4 | [is] [to-vb] at [art] [noun sg] | 53 |
|
| 5 | [is] [v-ing] [to-vb] at [art] | 15 |
|
