| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [adv prt] [prep] | 104 |
|
| 2 | they have been [v-ing] [prep] | 52 |
|
| 3 | they have been [v-ing] [adv prt] | 15 |
|
| 4 | they have been [adv prt] [prep] | 12 |
|
