| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] [v-ing] for years | 79 |
|
| 2 | [verb] been [v-ing] for years | 79 |
|
| 3 | [verb] [been] [v-ing] for years | 79 |
|
| 4 | [verb] be [v-ing] for years | 79 |
|
| 5 | have [be] [v-ing] for years | 79 |
|
| 6 | [vb base] [be] [v-ing] for years | 36 |
|
| 7 | have [be] [v-ing] for years | 25 |
|
| 8 | [vb past] [be] [v-ing] for years | 19 |
|
| 9 | [vb -s] [be] [v-ing] for years | 18 |
|
| 10 | had [be] [v-ing] for years | 18 |
|
| 11 | 've [be] [v-ing] for years | 11 |
|
| 12 | has [be] [v-ing] for years | 10 |
|
| 13 | [verb] [be] trying for years | 9 |
|
| 14 | 's [be] [v-ing] for years | 8 |
|
