Past Perfect Tense – Negative form

You will study the Past Perfect Tense in the Negative form.


Past Perfect Tense – Negative form

Science and Technology

Instructions: Read the text. Look at the letters in bold.

Until 2012, Canada hadn't spent C$31.3 billion on domestic research and development, of which around $7 billion was provided by the federal and provincial governments. As of 2015, the country has produced thirteen Nobel laureates in physics, chemistry, and medicine, and was ranked fourth worldwide for scientific research quality in a major 2012 survey of international scientists. It is furthermore home to the headquarters of a number of global technology firms. Canada has one of the highest levels of Internet access in the world, with over 33 million users, equivalent to around 94 percents of its total 2014 population.

Canada. Retrieved and adapted January, 2017 from

Getting started: Canadian Space Agency

Instructions: Read the following information to do the activity suggested.

The Canadian Space Agency operates a highly active space program, conducting deep-space, planetary, and aviation research, and developing rockets and satellites. Canada was the third country to launch a satellite into space after the USSR and the United States, with the 1962 Alouette 1 launch. In 1984, Marc Garneau became Canada’s first male astronaut. Canada is a participant in the International Space Station (ISS), and is a Pioneer in space robotics, having constructed the Canadarm, Cadadarm2 and Dextre robotic manipulators for the ISS and NASA’s Space Shuttle. Since the 1960s, Canada’s aerospace industry has designed and built numerous marques of satellite, including Radarsat 1 and 2, ISIS and MOST. Canada has also produced one of the world’s most successful and widely used sounding rockets, the Black Brant; over 1,000 Black Brants have been launched since the rocket’s introduction in 1961.

Canada. Retrieved and adapted January, 2017 from

Rockets and satellites

Instructions: Match the two halves of the sentences.

they launched the Alouette 1the Radarsat 1 was builtthey made aviation research

1. Canada hadn’t developed rockets and satellites before ______________.

2. Canada hadn’t had an astronaut before ______________.

3. Space robotic hadn’t been developed before ______________.

Let’s find out how to make negative sentences in the Present Perfect Tense.

Instructions: Look at the way we make negative sentences in the Present Perfect Tense.

Remember: We use the Past Perfect Tense make it clear that one action happened before another in the past.


  • I had phoned you before you came to see me.
  • Joe had asked Jane to get married before she went away.


Look at the word order in the Negative form:

Past PerfectSimple Past
SubjectAuxiliary Had + notVerb in Past ParticipleComplement.BeforeSubjectVerb in pastComplement.
Johnhadn’twrittena letter.beforeSusancalledhim.
The boyshadn’tdonethe homeworkbeforetheir mothertoldthem to do it.


We can also start using When:

Simple PastPast Perfect
WhenSubjectVerb in Simple PastComplement.SubjectAuxiliary Had + notVerb in past participleComplement.
WhenSusancalledhimJohnhadn’twrittena letter.
Whentheir mothertoldthe boys to do the homeworktheyhadn’tdoneit.



Space programs

Instructions: Change the following sentences into the negative form.

  1. Canada had gone to the space before the USSR started its space programs. .
  2. Canada had developed space programs before the US developed theirs. .
  3. When the USSR launched its first satellite, Canada had created a strong space program. .
  4. Many scientists had gathered in the Canadian Space Agency before they participated in the space program. .
  5. When Canada started participating in the International Space Station, they had already gone to the moon. .
done Check


Canadian satellites

Instructions: Unscramble the words to make negative sentences.

and developmenta lot of moneyCanadabeforehadn’t spenton domestic researchthey started space programs
rockets and satellitesThe Canadian Space Agencybeforehadn’t launchedthe US did it
Radarsat 2beforehadn’t been builtspace robotic was developed
hadn’t becomemale astronautMarc GarneaubeforeCanada’s firstthe country launched the Alouette 1
hadn’t hadthe Cold War startedThe USbeforea space program


The Past Perfect Tense

Instructions: Choose the right options in the following text.

  1. I hadn’t analyze/ hadn’t analyzed the Past Perfect before I went to College.
  2. My classmates hadn’t heard / haven’t heard about Space programs before we took this class.
  3. We hadn’t read / hasn’t read anything about Canadian Satellites before we studied this lesson.
  4. Our English teacher hadn’t talked / hadn’t talk about Canada before we went to see a movie about it.
  5. When we saw “Interstellar”, Susan hadn’t studied / haven’t studied anything about the topic.
done Check