| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [v-ing] | 7370 |
|
| 2 | is [pers pn] [adv] | 1840 |
|
| 3 | [pers pn] [adv] [v-ing] | 1162 |
|
| 4 | is [pers pn] [v-ing] | 928 |
|
