| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [art] | 30505 |
|
| 2 | [v-ing] [adv] [art] | 15764 |
|
| 3 | is [v-ing] [art] | 5977 |
|
| 4 | is [v-ing] [adv] | 5947 |
|
