| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [art] | 32032 |
|
| 2 | be [v-ing] [art] | 32030 |
|
| 3 | [am/are] [v-ing] [art] | 7876 |
|
| 4 | 're [verb] [art] | 2028 |
|
