Understanding Direct and Indirect Speech

Direct speech reports the exact words of the speaker, usually enclosed in quotation marks. Indirect speech (or reported speech) reports what someone said but does not use their exact words. When converting direct speech to indirect speech, several changes are typically made, including changes in reporting verb, tense, pronouns, and time/place adverbs, depending on the type of sentence.

Analyzing the Direct Speech Sentence

The given sentence is: "The supervisor said to the staff, 'Make sure that every room is disinfected properly.'"

• The reporting verb is "said to".
• The reported speech is "'Make sure that every room is disinfected properly.'".
• The reported speech is an imperative sentence (a command or instruction).

Converting an Imperative Sentence to Indirect Speech

When converting an imperative sentence from direct speech to indirect speech, the following changes are common:

• The reporting verb is usually changed to verbs like asked, told, ordered, commanded, instructed, advised, requested, etc., depending on the context. In this case, "said to" can be changed to "instructed" as a supervisor gives an instruction.
• The inverted commas (" ") are removed.
• The imperative mood verb in the direct speech is changed to an infinitive phrase (to + base form of the verb).
• Other necessary changes in pronouns, tense, and time/place adverbs are made.

Let's apply these rules to the sentence: "The supervisor said to the staff, 'Make sure that every room is disinfected properly.'"

1. Change the reporting verb: "said to the staff" becomes "instructed the staff".

2. Change the imperative verb "Make sure" to the infinitive "to make sure".

3. The reported clause is "that every room is disinfected properly". The verb here is "is disinfected" (present simple passive). When the reporting verb is in the past tense ("said"), the tense in the reported clause typically shifts back. Present simple passive "is disinfected" becomes past simple passive "was disinfected".

Combining these changes, the indirect form should be: "The supervisor instructed the staff to make sure that every room was disinfected properly."

Evaluating the Options

Let's examine each option based on the conversion rules:

1. The supervisor instructed the staff to make sure that every room was disinfected properly.
   

   This option changes "said to" to "instructed", changes the imperative "Make sure" to "to make sure", and correctly shifts the tense of "is disinfected" to "was disinfected". This matches our derived indirect form.

2. The supervisor instructed the staff to make sure that every room was being disinfected properly.
   

   This option changes "is disinfected" to "was being disinfected" (past continuous passive). This is not the correct tense shift from present simple passive.

3. The supervisor instructs the staff to make sure that every room is disinfected properly.
   

   This option changes the reporting verb to the present tense ("instructs") which doesn't match the original past tense reporting verb ("said"). Also, it keeps the tense in the reported clause as "is disinfected" without shifting it back.

4. The supervisor instructed the staff to make sure that every room had been disinfected properly.
   

   This option changes "is disinfected" to "had been disinfected" (past perfect passive). This is not the correct tense shift from present simple passive. Past perfect passive is usually the shift for present perfect passive or past simple passive in direct speech.

Based on the analysis, option 1 correctly transforms the direct speech imperative sentence into indirect speech.

Revision Table: Key Transformations

Understanding how different sentence types transform is crucial for mastering direct and indirect speech.

Additional Information on Reported Speech

Here are some extra points to remember about converting to reported speech:

• Modal Verbs: Modals like 'can' change to 'could', 'may' to 'might', 'will' to 'would'. 'Should', 'could', 'might', 'would' usually remain unchanged.
• Time and Place References: Words indicating proximity often change to words indicating distance, e.g., 'now' becomes 'then', 'today' becomes 'that day', 'here' becomes 'there', 'this' becomes 'that', 'these' becomes 'those', 'tomorrow' becomes 'the next day', 'yesterday' becomes 'the previous day'.
• Reporting Verb Choice: The choice of reporting verb (tell, ask, order, request, advise, etc.) depends on the function of the original sentence (statement, question, command, request, advice). 'Tell' is usually followed by an object (tell *someone* something). 'Say' is not typically followed immediately by an object (say something or say *to someone* something).
• No Tense Change: Tense shift may not occur if the statement is a universal truth, a habitual action, or if the reporting verb is in a present tense. However, in this question, the reporting verb "said" is in the past tense, so tense shift is required.

Understanding these rules helps in accurately transforming sentences from direct to indirect speech.