| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [v-ing] hard | 25 |
|
| 2 | [vb base] [been] working hard | 14 |
|
| 3 | 've [been] [v-ing] hard | 13 |
|
| 4 | have [been] [v-ing] hard | 12 |
|
