| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [v-ing] for [det] | 199 |
|
| 2 | [verb] be [v-ing] for years | 79 |
|
| 3 | be [v-ing] for [det] years | 37 |
|
| 4 | [verb] be for [det] years | 35 |
|
