| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [v-ing] for two [noun] | 21 |
|
| 2 | [been] [v-ing] for two [noun pl] | 20 |
|
| 3 | [been] [v-ing] for two year | 13 |
|
| 4 | [been] [v-ing] for two years | 12 |
|
