No | Pattern | Freq | Relations |
---|---|---|---|
1 | [v-ing] over a [adj] period | 9 |
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2 | [v-ing] over a [adj] period | 8 |
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3 | [v-ing] over a long period | 5 |
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4 | [v-ing] over a period [prep] | 13 |
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5 | [v-ing] over a period [prep] | 13 |
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6 | [v-ing] over a period of | 12 |
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7 | [v-ing] over a period of | 12 |
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