I have studied English in several
different countries.
在一些国家,我已经学习了英语.I had studied a little English before
I moved to the U.S.
在我搬去美国之前,我已经学习了一
点英语.
time I finish this course.
在我完成这个课程的时候,我已经能
完成英语时态的学习了.
句子结构:主语+be going to+have
done
I’m going to have studied every tense
by the time I finish this course.
同上.
Present Perfect Continuous 现在完成进行时Past Perfect Continuous
过去完成进行时
Future Perfect Continuous
将来完成进行时
句子结构:主语+have/has been
doing
I have been studying English for
ten years.
我已经学习英语有十年的时间了.
句子结构:主语+had been doing
I had been studying English for ten
years before I moved to the U.S.
在我搬去美国之前,我已经学习了十
年的英语了.
句子结构:主语+will have been doing
I will have been studying English for
over three hours by the time you
arrive.
明晚你来的时候,我已经学习英语3
个小时了.
句子结构:主语+be going to have
been doing
I’m going to have been studying
English for over three hours by the
time you arrive
同上.
详细讲解-一般现在时
通常以动词原形表示。主语为第三人称单数时，用现单三形式。动词be和have(表示“拥有”)各人称的单数形式为：
第一人称单数第二人称单数第三人称单数Have Have Have Has
Be Am Are i s
一般现在时的否定式、疑问式和简单回答形式如下：
动词be 与have（表示“拥有”）：否定式直接把not放在动词之后，疑问式直接把动词放在主语之前，见下表：
否定式&疑问式
Be Have Be Have
I am not (I’m not)… I have not (haven’t)… Am i…? Have i…?
You are not (aren’t)… You have not (haven’t)… Are you…? Have you…? He is not (isn’t)… He has not (hasn’t)… Is he …? Has he …?
动词be 的否定疑问式和简单回答：
否定疑问式肯定回答否定回答
Am I not (aren’t i)…? Yes, you are. No, you aren’t
Are you not (aren’t you)…? Yes, I am. No, I’m not.
Is he not (isn’t he)…? Yes, he is. No, he isn’t
动词be 与have(表示“拥有”)：否定式直接把not放在动词之后，疑问式直接把动词放在主语之前，见下表：
否定式疑问式
Be Have Be Have
I am not (I’m not)… I have not (haven’t)… Am i…? Have I …?
You are not (aren’t)… You have not (haven’t)… Are you …? Have you…? He is not (isn’t)… He has not (hasn’t)… Is he …? Has he …?
动词have(表示“拥有”) 的否定疑问式和简单回答：
否定疑问式肯定回答否定回答
Have I not (haven’t i)…? Yes, you have. No, you haven’t.
Have you not (haven’t you)…? Yes, I have. No, I haven’t.
Has he not (hasn’t he)…? Yes, he has. No, he hasn’t.
注意：have 作为行为动词则只能按照行为动词的规则变化。
行为动词（以study为例）一般现在时的否定式、疑问式和简单回答（注意要加助动词do/does）否定式疑问式
I do not (don’t) study Do I study
You do not (don’t) study Do you study
He does not (doesn’t) study Does he study
否定疑问句式简单回答（肯定/否定）
Do I not (Don’t I) study…? Yes, I do. No, I don’t.
Do you not (Don’t you) study…? Yes, you do. No, you don’t.
Does he not (Doesn’t he) study…? Yes, he does. No, he doesn’t.
详细讲解-现在进行时、一般过去时
由助动词be ＋现在分词构成。其中be有人称和数的变化，有三种形式：第一人称单数用am, 第三人称单数用is, 其他用are。
现在进行时的否定式是：直接在助动词be后面加上not；疑问式是：把助动词be提到主语之前。以study 为例：
否定式疑问式
I am not studying Am I studying?
You are not studying,Are you studying?
