现在进行时的构成
任何动词的现在进行时都是以两个部分所构成——Be 动词的现在时 + 主要动词的现在分词。
（现在分词的结构为：动词原型+ing，例如 talking丶playing丶moving丶smiling）
肯定句
主词
+ Be 动词
+ 原型 + ing
She
is
talking.
否定句
Subject
+ Be 动词 + not
+ 原型 + ing
She
is not (isn't)
talking.
疑问句
Be 动词
+ 主词
+ 原型 + ing
Is
she
talking?
举例：TO GO 用于现在进行时
肯定句
否定句
疑问句
I am going.
I am not going.
Am I going?
You are going.
You aren't going.
Are you going?
He, she, it is going.
He, she, it isn't going.
Is he, she, it going?
We are going.
We aren't going.
Are we going?
You are going.
You aren't going.
Are you going?
They are going.
They aren't going.
Are they going?
注：也可使用否定形式的缩写：I'm not going丶you're not going丶he's not going 等。
现在进行时的作用
就如所有英语中的时态一样，说话者的态度与动作或事件发生的时间一样重要。当某人使用了现在进行时，他们就是认为某件事未完成或不完整
使用现在进行式的情况：
描述某个动作目前正在发生：You are using the Internet. You are studying English grammar.
描述某个动作正在这段时间或趋势发生：Are you still working for the same company? More and more people are becoming vegetarian.
描述某个未来的动作或事件，而这个动作或事件已经是规划或准备好的：We're going on holiday tomorrow. I'm meeting my boyfriend tonight. Are they visiting you next winter?
描述一个暂时的事件或情况：He usually plays the drums, but he's playing bass guitar tonight. The weather forecast was good, but it's raining at the moment.
用 always, forever, constantly 等副词来描述和强调一个不断反覆发生的动作：Harry and Sally are always arguing! You're constantly complaining about your mother-in-law!
要注意！有些动词通常不会用在进行时。
通常不会用在进行时的动词
以下的动词通常用在一般现在时，因为这些动词指的是状态，而不是动作或过程。
感觉 / 感知
to feel*
to hear
to see*
to smell
to taste
意见
to assume
to believe
to consider
to doubt
to feel (= to think)
to find (= to consider)
to suppose
to think*
心理状态
to forget
to imagine
to know
to mean
to notice
to recognise
to remember
to understand
情感 / 欲望
to envy
to fear
to dislike
to hate
to hope
to like
to love
to mind
to prefer
to regret
to want
to wish
测量
to contain
to cost
to hold
to measure
to weigh
其他
to look (=resemble)
to seem
to be（在多数情况）
to have（当它的意思是「to possess」的时候）*
例外情况
感知动词 (see, hear, feel, taste, smell) 时常与 can 连用：I can see... 这些动词也可以用在进行时，但意思上会有些不同。
This coat feels nice and warm.（你对外套品质的感觉）
John's feeling much better now（他的健康状况正在改善）
She has three dogs and a cat.（拥有）
She's having supper.（她正在吃）
I can see Anthony in the garden（知觉）
I'm seeing Anthony later（我们正打算要碰面）