| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [v-ing] [adv] a | 141 |
|
| 2 | be [adv] [v-ing] [adv] [art] | 59 |
|
| 3 | be [adv] [verb] [adv] a | 55 |
|
| 4 | [be] [adv] [v-ing] [adv] a | 27 |
|
