| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] for three [noun pl] | 21 |
|
| 2 | have been [v-ing] for three year | 11 |
|
| 3 | have been [v-ing] for three years | 11 |
|
| 4 | has been [v-ing] for three [noun] | 9 |
|
| 5 | 's been [v-ing] for three [noun] | 5 |
|
| 6 | have been [v-ing] for three days | 5 |
|
| 7 | have been [v-ing] for three day | 5 |
|
