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容词，如：early, hourly, monthly ?
［误］ You can speak free in front of your friends.? ［正］ You can speak freely in front of your friends.?
［析］ free作为形容词意为"自由的，有空闲的，免费的"。作为副词讲则是"免费"之意。而freely作为副词则是"自由的，随便的"。这些要注意的词还有：?hard 努力，艰苦 hardly 几乎不 late 迟，晚?lately 最近的，最新的 near 近 nearly 几乎?like 像 likely 几乎?
［误］ They must have arrived till now.? ［正］ They must have arrived by now.?
［析］ by now是用于表达到目前为止某一动作已经发生，所以应用瞬间动词。而till now是强调某一动作一直持续到现在，所以一定要用持续性动词。?must have+过去分词是对过去某一事情所作的肯定推测。? ［误］ Someone called you right now.? ［正］ Someone called you just now.?
［析］ just now有两个意思，其一是"刚才"，其二是"现在"，而right now只能用于现在的状态。just则用于完成时态，如： I have just finished my homework.?
