| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] [prep] a | 94 |
|
| 2 | has [been] [v-ing] for a | 30 |
|
| 3 | has [been] [v-ing] at a | 12 |
|
| 4 | has [been] working [prep] a | 12 |
|
| 5 | has [been] [v-ing] on a | 10 |
|
| 6 | has [been] [v-ing] in a | 9 |
|
| 7 | has [been] [v-ing] with a | 8 |
|
| 8 | has [been] [v-ing] as a | 7 |
|
| 9 | has [been] running [prep] a | 6 |
|
| 10 | has [been] suffering [prep] a | 6 |
|
| 11 | has [been] [v-ing] from a | 5 |
|
