| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this has been [verb] [adv prt] for | 10 |
|
| 2 | this has been [v-ing] [adv] for | 8 |
|
| 3 | this has been [verb] on for | 6 |
|
| 4 | this has been going [adv] for | 6 |
|
| 5 | this has been go [adv] for | 6 |
|
| 6 | this has been [verb] on for | 6 |
|
