| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [be] [v-ing] [prep] [adj] years | 64 |
|
| 2 | [vb -s] [be] [verb] [prep] three years | 19 |
|
| 3 | [vb -s] [be] [v-ing] [prep] three [noun pl] | 15 |
|
| 4 | [vb -s] [be] [v-ing] [prep] three [noun] | 15 |
|
| 5 | [verb] [be] [v-ing] [prep] three years | 11 |
|
| 6 | [vb -s] [be] [v-ing] [prep] three year | 8 |
|
