Sam An Teng
(i) Present Simple
Active: SUBJECT + VERB 1 + OBJECT
Passive: SUBJECT + AM/IS/ARE + VERB 3 + BY AGENT
Passive: SUBJECT + AM/IS/ARE + VERB 3 + BY AGENT
For examples
- Active: He designs a new logo.
- Passive: A new logo is designed by him.
- Active: They visit their parents.
- Passive: Their parents are visited by them.
(ii) Present Continuous
Active: SUBJECT + AM/IS/ARE + VERB-ING + OBJECT
Passive: SUBJECT + AM/IS/ARE + BEING + VERB 3 + BY AGENT
Passive: SUBJECT + AM/IS/ARE + BEING + VERB 3 + BY AGENT
For examples
- Active: She is finishing the homework.
- Passive: The homework is being finished by her.
- Active: They are building a new house.
- Passive: A new house is being built by them.
(iii) Present Perfect Simple
Active: SUBJECT + HAVE/HAS + VERB 3 + OBJECT
Passive: SUBJECT + HAVE/HAS + BEEN + VERB 3 + BY AGENT
Passive: SUBJECT + HAVE/HAS + BEEN + VERB 3 + BY AGENT
For examples
- Active: We have launched new courses this year.
- Passive: New courses have been launched (by us) this year.
- Active: He has upgraded the software.
- Passive: The software has been upgraded by him.
(iv) Present Perfect Continuous
Active: SUBJECT + HAVE/HAS + BEEN + VERB-ING + OBJECT
Passive: SUBJECT + HAVE/HAS + BEEN + BEING + VERB 3 + BY AGENT
Passive: SUBJECT + HAVE/HAS + BEEN + BEING + VERB 3 + BY AGENT
For examples
- Active: He has been designing this application for years.
- Passive: This application has been being designed (by him) for years.
- Active: They have been constructing a new bridge since last year.
- Passive: A new bridge has been being constructed (by them) since last year.
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