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用于个人发展的思维导图
思维导图的好处
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文章
甚麼是思維導圖?
How to Mind Map?
How to Take Notes with Mind Maps?
How to Prioritize Tasks with Mind Maps?
What is a Concept Map?
Top 29 Mind Map Examples
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Products
Mind Mapping Software
Outlining Software
甘特图软件
Uses
Mind Maps for Education
用于个人发展的思维导图
思维导图的好处
文章
甚麼是思維導圖?
How to Mind Map?
How to Take Notes with Mind Maps?
How to Prioritize Tasks with Mind Maps?
What is a Concept Map?
Top 29 Mind Map Examples
特点
教育
个人和工作
台式电脑
說明
Video Tutorials
Help Center
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effects
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verbs
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tense
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actions
作者:
Mariateresa Puglisi
4 年以前
925
The Present Perfect Tense
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The Present Perfect Tense
It has different uses
Sottoargomento
It's used for past actions that have effects on present
It's used for an undefined past action
It's used for events recently happened
It has three forms
Interrogative
Have I played?
Negative
I haven't played
Affirmative
I have played
It's made up of the auxiliary have + the past participle of the main verb
The past participle of the irregular verbs has to be studied, taking into account the verb paradigm
The past participle of the regular verbs is made up by adding the suffix -ed to the base form
It's one of the past tenses