英语副词按照其功能和意义可以分为以下几类：

时间副词：这类副词用于描述动作发生的时间或事件与现在的关系，回答“何时”（when）的问题。常见的时间副词包括:

绝对时间：now, then, soon, ago, recently, lately, later, before, early, today, tomorrow, yesterday, tonight, this morning/afternoon/evening, last night/day/week/month/year, next week/month/year, etc.

相对时间：already, yet, soon, eventually, immediately, suddenly, finally, immediately, still, always, never, ever, often, sometimes, usually, frequently, occasionally, rarely, etc.

地点副词：定义动作发生的地点或方向，回答“何地”（where）的问题。典型地点副词有：

具体位置：here, there, up, down, away, nearby, home, ahead, back, behind, inside, outside, above, below, beneath, under, over, around, across, through, everywhere, nowhere, anywhere, somewhere, etc.

方向性：north, south, east, west, northeast, southeast, southwest, northwest, left, right, straight, forward, backward, in, out, off, on, etc.

更广泛的地理范围：abroad, domestically, locally, globally, internationally, overseas, inland, downtown, uptown, countryside, city center, suburbs, etc.

频率副词：表示动作发生的次数或频率。例子包括：

一般频率：always, constantly, continually, frequently, habitually, normally, regularly, usually, often, sometimes, occasionally, rarely, seldom, never, etc.

精确频率：once, twice, thrice, daily, weekly, monthly, annually, biannually, quarterly, etc.

模糊频率：occasionally, from time to time, every now and then, once in a while, etc.

程度副词：用来修饰动词、形容词或其他副词，表达动作的程度、强度或量级。常见的程度副词有：

基本程度：very, extremely, highly, really, quite, so, too, terribly, utterly, absolutely, completely, fully, entirely, perfectly, etc.

比较程度：more, less, much, little, far, a lot, slightly, somewhat, marginally, etc.

最高程度：most, least, utmost, minimum, maximum, absolutely, positively, etc.

否定程度：not, hardly, barely, scarcely, no longer, by no means, etc.

限定程度：almost, nearly, practically, virtually, roughly, approximately, about, just, merely, simply, etc.

方式副词：描述动作进行的方式、方法、态度或状态。例子包括：

行为方式：carefully, slowly, quickly, fast, steadily, smoothly, clumsily, skillfully, elegantly, awkwardly, timidly, bravely, honestly, dishonestly, etc.

关系方式：politely, rudely, kindly, warmly, coldly, friendly, unfriendly, respectfully, disrespectfully, etc.

逻辑方式：logically, illogically, reasonably, unreasonably, intuitively, scientifically, etc.

语气副词：调整说话者的态度、情感或对陈述句的肯定程度，影响句子的语气。这类副词包括：

确信程度：certainly, definitely, surely, undoubtedly, absolutely, positively, without doubt, etc.

怀疑或不确定性：probably, possibly, maybe, perhaps, allegedly, reportedly, seemingly, apparently, etc.

谦虚或谨慎：hopefully, allegedly, supposedly, reportedly, etc.

惊讶或意外：amazingly, astonishingly, incredibly, unbelievably, etc.

命令或请求：please, kindly, gently, softly, etc.

逻辑连接副词：用于连接句子、分句或段落，表达转折、因果、对比、目的、结果、条件、让步等逻辑关系。这类副词包括：

转折：however, nevertheless, nonetheless, still, yet, though, although, even though, despite, in spite of, etc.

因果：therefore, thus, hence, accordingly, consequently, as a result, because, since, for, due to, owing to, etc.

对比：on the other hand, conversely, whereas, while, in contrast, unlike, etc.

目的：so, therefore, in order that, lest, for fear that, etc.

结果：thus, hence, so, such that, etc.

条件：if, unless, provided that, as long as, supposing, in case, etc.

让步：although, though, even though, despite, in spite of, while, conceding that, etc.

以上就是英语副词的主要分类，每一类副词在句子中承担不同的语义功能，帮助丰富语言表达，提供更为精确的信息。