Easy to do, hard to do, too big to carry, happy to help. Easy to carry is a standard form (adjective+to infinitive) where the adjective modifies the infinitive: Can have two forms for comparison:
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Easy peasy lemon squeezy! but equally, a mother might use it to a child, maybe after successfully convincing them to do something they were reluctant to do: 接下来让我们看下be easy to do sth和be easy doing sth的用法区别： 1.语法结构：be easy to do sth是固定搭配，后接不定式作宾语；而be easy doing sth中的doing sth是动名词作宾语。 例. Someone points out that bill hates sushi but loves pizza, and that choosing pizza is their best option.
The workers are arguing over what to order, sushi or pizza.
More + adj or adj + er ending.
