| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [be] [v-ing] [prep] [art] | 349 |
|
| 2 | has [be] [verb] since [art] | 42 |
|
| 3 | have [be] [v-ing] since [art] | 39 |
|
| 4 | [verb] [be] [v-ing] since [art] | 39 |
|
| 5 | [vb -s] [be] [v-ing] since [art] | 12 |
|
