| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [v-ing] [adv prt] | 288 |
|
| 2 | has [been] [v-ing] for | 270 |
|
| 3 | [been] [v-ing] [adv prt] for | 198 |
|
| 4 | has [been] [adv prt] for | 59 |
|
