| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [v-ing] for [adj] years | 47 |
|
| 2 | [vb past] been [v-ing] for [adj] year | 47 |
|
| 3 | had be [v-ing] for [adj] year | 44 |
|
| 4 | [vb past] be [v-ing] for [num] year | 27 |
|
| 5 | [vb past] be [v-ing] for [det] year | 20 |
|
| 6 | [vb past] be [v-ing] for some year | 7 |
|
| 7 | [vb past] be [v-ing] for some year | 7 |
|
| 8 | [vb past] be [v-ing] for many year | 7 |
|
| 9 | [vb past] be [v-ing] for many year | 7 |
|
| 10 | [vb past] be [v-ing] for several year | 6 |
|
| 11 | [vb past] be [v-ing] for two year | 6 |
|
| 12 | [vb past] be [v-ing] for two year | 6 |
|
| 13 | [vb past] be [v-ing] for several year | 6 |
|
