| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv prt] a | 705 |
|
| 2 | [coord] be [v-ing] [adv prt] | 252 |
|
| 3 | [coord] be [v-ing] a | 233 |
|
| 4 | [coord] [v-ing] [adv prt] a | 196 |
|
