| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] [verb] [is] | 383 |
|
| 2 | [be] [adv] [v-ing] [is] | 148 |
|
| 3 | [be] [adv] happening [be] | 11 |
|
| 4 | [be] [adv] happen [is] | 10 |
|
