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现在进行时
（The Present Continuous Tense）
be随人称变为 is, am, are
I am speaking.
They are talking.
He is running.
I speak
they talk
he run
I am not speaking.
They are not talking.
He is not running.
Am I speaking？
Are they talking？
Is he running？
Say the sentences with the present continuous tense
现在分词( V-ing形式)的构成
一般在动词原形后直接加ing
do
ask
doing
asking
以不发音的e结尾的，去e加ing
write
dance
writing
dancing
重读闭音节要双写结尾的辅音字母再加ing
get
run