| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] be [v-ing] for [adj] year | 30 |
|
| 2 | [vb base] [been] [v-ing] for [adj] year | 30 |
|
| 3 | [vb base] [be] [v-ing] for [adj] years | 30 |
|
| 4 | [vb base] been [v-ing] for [adj] year | 30 |
|
| 5 | [vb base] [be] [v-ing] for [num] year | 21 |
|
| 6 | have [be] [v-ing] for [adj] year | 18 |
|
| 7 | 've [be] [v-ing] for [adj] year | 12 |
|
| 8 | [vb base] [be] [v-ing] for [det] year | 9 |
|
| 9 | [vb base] [be] [v-ing] for several year | 6 |
|
| 10 | [vb base] [be] [v-ing] for several year | 6 |
|
| 11 | [vb base] [be] going for [adj] year | 5 |
|
