| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [verb] [prep] recent years | 88 |
|
| 2 | have been [verb] [prep] recent years | 88 |
|
| 3 | [vb -s] been [verb] [prep] recent years | 49 |
|
| 4 | has been [verb] [prep] recent years | 49 |
|
| 5 | [vb base] been [verb] [prep] recent years | 35 |
|
| 6 | have been [verb] [prep] recent years | 35 |
|
| 7 | [adv] been [verb] [prep] recent years | 7 |
|
| 8 | [adv] been [verb] [prep] recent years | 5 |
|
| 9 | been [adv] [verb] [prep] recent years | 21 |
|
| 10 | been [adv] [verb] [prep] recent years | 21 |
|
| 11 | been extensively [verb] [prep] recent years | 6 |
|
| 12 | been extensively [verb] [prep] recent years | 6 |
|
| 13 | been [verb] [adv] [prep] recent years | 18 |
|
| 14 | been [verb] [adv] [prep] recent years | 13 |
|
| 15 | been [verb] [adv prt] [prep] recent years | 5 |
|
| 16 | been [verb] [prep] recent years [prep] | 36 |
|
| 17 | been [verb] [prep] recent years [prep] | 36 |
|
| 18 | been [verb] [prep] recent years by | 14 |
|
| 19 | been [verb] [prep] recent years by | 14 |
|
| 20 | been [verb] [prep] recent years [conj] | 9 |
|
| 21 | been [verb] [prep] recent years [coord] | 7 |
|
| 22 | been [verb] [prep] recent years in | 7 |
|
| 23 | been [verb] [prep] recent years and | 7 |
|
| 24 | been [verb] [prep] recent years in | 7 |
|
| 25 | been [verb] [prep] recent years and | 7 |
|
| 26 | been [verb] [prep] recent years [be] | 5 |
|
| 27 | been [verb] [prep] recent years be | 5 |
|
