| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] for years | 107 |
|
| 2 | have been [v-ing] for years | 79 |
|
| 3 | have been trying for [noun pl] | 15 |
|
| 4 | have been trying for [noun] | 15 |
|
| 5 | have been trying [prep] years | 9 |
|
| 6 | have been trying for year | 9 |
|
| 7 | have [been] trying for years | 9 |
|
| 8 | have be trying for years | 9 |
|
| 9 | [verb] been trying for years | 9 |
|
| 10 | have [be] trying for years | 9 |
|
| 11 | have been try for years | 9 |
|
