| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [v-ing] [prep] [art] | 678 |
|
| 2 | is [adv] [v-ing] [prep] [art] | 678 |
|
| 3 | be [adv] [v-ing] at [art] | 260 |
|
| 4 | [be] [adv] [v-ing] at [art] | 260 |
|
| 5 | is [adv] [verb] at [art] | 202 |
|
| 6 | [is] [adv] [v-ing] at [art] | 62 |
|
| 7 | is [adv] [v-ing] at [art] | 62 |
|
| 8 | is [adv] [v-ing] at [art] | 55 |
|
