| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [adv] [prep] [art] | 4637 |
|
| 2 | be [v-ing] [adv] [prep] [art] | 4636 |
|
| 3 | is [verb] [adv] [prep] [art] | 3438 |
|
| 4 | [is] [v-ing] [adv] [prep] [art] | 833 |
|
| 5 | is [v-ing] [adv] [prep] [art] | 587 |
|
