Products
Mind Mapping Software
Outlining Software
甘特图软件
Uses
Mind Maps for Education
Mind maps for Business
用于个人发展的思维导图
思维导图的好处
資源
特点
教育
个人和工作
台式电脑
Video Tutorials
Watch tips and tricks about using Mindomo.
Help Center
Detailed help guide on configuring and using Mindomo.
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
定价
登入
注册
Products
Mind Mapping Software
Outlining Software
甘特图软件
Uses
Mind Maps for Education
Mind maps for Business
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
定价
注册
登入
类别
全部
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examples
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action
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tense
作者:
Alejandro ANCO
3 年以前
266
PRESENT PERFECT CONTINOUS
開啟
更多类似内容
PREFFIXES & SUFFIXES (GRAMMAR - STRUCTURE)
由EDIXON LARES
TAG QUESTION
由Elvira Ortiz
INDUCCIÓN
由JHON EYDER GAVILAN ROJAS
Present Simple Tense
由הגר כהן
PRESENT PERFECT CONTINOUS
STRUCTURE
(=) Yes, (I/You/He/She/It/We/They) - have/has; No, (I/You/He/She/It/We/They) - haven't/hasn't.
(?) Have/Has - subject - been - verb (ing) - complement ?
(-) Subject - haven't/hasn't - been - verb (ing) - complement.
(+) Subject - have/has - been - verb (ing) - complement
SIGNAL WORDS
every night, every day
since, for
How long
EXAMPLES
(=) Yes, he has
(?) Has he been living on the next door since 1999?
(-) You haven't been studying for the final exams.
(+) I have been working here since 2011.
USES
Express an action that started in the past and is still going on in the present. Express an action that started in the past and has just finished.