| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [art] | 71316 |
|
| 2 | be [v-ing] [adv] | 44513 |
|
| 3 | be [v-ing] [art] | 32030 |
|
| 4 | [v-ing] [adv] [art] | 15764 |
|
