1. Lesson Overview
In this lesson, you will learn how verb tenses change when direct speech is converted into reported speech. This change is commonly known as tense backshifting.
Backshifting occurs because the reporting verb is usually in the past tense (e.g., said, told, explained). When this happens, the tense of the reported clause often shifts one step back in time.
Example:
Direct speech:
She said, “I am analysing the data.”
Reported speech:
She said that she was analysing the data.
Understanding tense changes is essential for forming accurate and grammatically correct reported speech.
By the end of this lesson, you will be able to:
-
recognise how verb tenses shift during reporting
-
apply the complete system of tense transformations
-
identify situations where tense does not change
-
avoid common learner errors involving tense backshifting
2. Concept Introduction
Consider the following sentences:
Direct speech:
He said, “I work in the laboratory.”
Reported speech:
He said that he worked in the laboratory.
Another example:
Direct speech:
She said, “I will finish the report.”
Reported speech:
She said that she would finish the report.
| Direct Speech | Reported Speech |
|---|---|
| work | worked |
| will finish | would finish |
The tense changes because the reporting verb said is in the past tense.
3. Core Explanation
When the reporting verb is in the past tense, the verb in the reported clause usually shifts one step back in time.
This shift maintains the logical time relationship between the original statement and the reporting moment.
Example:
Direct speech:
The scientist said, “The experiment is successful.”
Reported speech:
The scientist said that the experiment was successful.
Here the tense changes from present simple → past simple.
4. Rule Table
Basic Backshifting Rules
| Direct Speech | Reported Speech |
|---|---|
| present simple | past simple |
| present continuous | past continuous |
| present perfect | past perfect |
| past simple | past perfect |
| will | would |
| can | could |
| may | might |
Examples
| Direct Speech | Reported Speech |
|---|---|
| She said, “I study biology.” | She said that she studied biology. |
| She said, “I am writing the report.” | She said that she was writing the report. |
| She said, “I have finished the work.” | She said that she had finished the work. |
| She said, “I completed the task.” | She said that she had completed the task. |
| She said, “I will start tomorrow.” | She said that she would start the next day. |
5. Usage
1. Reporting statements about past conversations
Example:
He said that he was reviewing the data.
2. Reporting completed actions
Example:
She said that she had finished the report.
3. Reporting future intentions
Example:
He said that he would begin the experiment later.
4. Reporting abilities
Example:
She said that she could solve the problem.
5. Reporting permissions or possibilities
Example:
He said that they might publish the results soon.
6. Signal Words
Certain reporting verbs and contextual expressions signal reported speech with tense shifts.
| Expression | Example |
|---|---|
| said that | She said that the results were correct. |
| told | He told the team that the system had failed. |
| explained that | The instructor explained that the method was effective. |
| mentioned that | She mentioned that the data required revision. |
| reported that | The technician reported that the device had malfunctioned. |
7. Special Cases
When Tense Does Not Change
Backshifting does not occur in some situations.
1. Universal truths
Example:
Direct speech:
The teacher said, “Water boils at 100°C.”
Reported speech:
The teacher said that water boils at 100°C.
Scientific facts remain unchanged.
2. Statements that are still true
Example:
Direct speech:
She said, “I live in London.”
Reported speech:
She said that she lives in London.
If the situation is still true, the tense may remain the same.
3. Reporting verb in present tense
Example:
Direct speech:
She says, “I like this method.”
Reported speech:
She says that she likes this method.
No tense change occurs because the reporting verb is present tense.
8. Additional Notes
Backshifting does not always indicate a real change in time. It simply reflects the grammatical relationship between the reporting verb and the reported clause.
Example:
Direct speech:
She said, “The experiment is successful.”
Reported speech:
She said that the experiment was successful.
The experiment may still be successful; the tense change reflects reported structure, not necessarily time change.
9. Common Errors
⚠ Failing to backshift tense
Incorrect:
She said that she studies chemistry.
Correct:
She said that she studied chemistry.
Explanation:
Present simple usually becomes past simple.
⚠ Incorrect tense transformation
Incorrect:
She said that she will finish the report.
Correct:
She said that she would finish the report.
Explanation:
Will → would in reported speech.
⚠ Incorrect perfect tense
Incorrect:
She said that she has completed the task.
Correct:
She said that she had completed the task.
Explanation:
Present perfect becomes past perfect.
⚠ Incorrect continuous tense
Incorrect:
She said that she is analysing the results.
Correct:
She said that she was analysing the results.
Explanation:
Present continuous becomes past continuous.
⚠ Unnecessary backshift with universal truths
Incorrect:
The teacher said that water boiled at 100°C.
Better:
The teacher said that water boils at 100°C.
Explanation:
Scientific facts usually do not change tense.
10. Lesson Mastery
After completing this lesson, you should now be able to:
✅ apply the rules of tense backshifting
✅ recognise how direct tenses change in reported speech
✅ identify situations where tense remains unchanged
✅ avoid common learner errors involving tense transformations