| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's been [v-ing] [adv prt] | 41 |
|
| 2 | 's been [v-ing] [adv prt] for | 24 |
|
| 3 | it 's been [v-ing] for | 20 |
|
| 4 | it 's been [adv prt] for | 8 |
|
