| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] [vb pp] | 31783 |
|
| 2 | [is] [adv] [v-ing] | 9714 |
|
| 3 | [adv] [vb pp] [v-ing] | 1819 |
|
| 4 | [is] [vb pp] [v-ing] | 677 |
|
