Lexis › Programme › Unit 10 › Lesson 06

The four you never use

A2 Workplaces
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You own six modals. In two minutes of real speech you reached for two of them. This lesson is about the other four, and about the articles that went missing while you were concentrating.

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01
Warm-up · 5 min

The only word for the job

Look at your partner’s tally pages from last lesson. Most speakers use have to and can for everything and leave the other four unused.

Below are six meanings. Each one has exactly one modal that expresses it properly. Substituting a different one changes what you said.

One meaning, one word

Match each meaning to the modal that is the only correct word for it.

mustn’t
don’t have to
should
have to
can
must
Teacher note Ask each student to name the two they used most and the two they used least, from their own tallies. The least-used pair is nearly always should and mustn’t, and both are needed for the portfolio piece.
02
Input · 6 min

The same paragraph twice

Round one, transcribed exactly

In my office we have to arrive at nine and we have to log the hours. We have to wear the badge. You don’t have to smoke inside — the boss is very strict. My colleague is supervisor, she have to check everything. On the Mondays we have to go to the meeting.

The same content, repaired

In my office we have to arrive at nine and log our hours. We must wear a badge at all times. You mustn’t smoke inside — the boss is very strict about it. My colleague is a supervisor, so she has to check everything. On Mondays we go to a team meeting.

What changed

Four questions comparing the two paragraphs. Look at the words, not the meaning.

1. The first version uses have to five times. What is the effect?

2. You don’t have to smoke inside became You mustn’t smoke inside. Why?

3. My colleague is supervisor became My colleague is a supervisor. What was wrong?

4. On the Mondays became On Mondays. What kind of error was the original?

03
Form Focus · 16 min

Forcing the range

Why the range collapses. Under time pressure you reach for the form you are surest of. have to is regular, it takes questions and negatives normally, and it never sounds wrong — so it swallows everything.

The cost is that your listener loses the distinctions. A rule with a legal penalty and a rule about coffee mugs come out identical.

Three pairs that are constantly confused

ThisNot thisBecause
mustn’t — forbiddendon’t have to — optionalThe not is on the action, not on the obligation
should — advicemust — obligationYou should get here early is a suggestion; you must is an order
can’t — not permittedmustn’t — forbiddenClose enough in speech; can’t is softer and commoner
had to — past obligationmustedmust has no past
has to — third personhave toThe -s lives on have, not on the main verb
can leavecan to leaveModals never take to
Open Cloze · Use each one once

Six gaps, six different modals. You may use each of must, mustn’t, have to, don’t have to, should, can exactly once.

You wear steel-capped boots on the floor — it is a legal requirement and there is an inspection. You cross the yellow line while the machines are running; people have lost fingers doing it. You clock in at the terminal by the door, because the system will not let payroll pay you otherwise. You bring your own lunch — there is a canteen, but plenty of people do. You introduce yourself to the shift supervisor on your first morning; nobody will make you, but it goes better if you do. And you eat at your desk if you would rather not go down.

Teacher note The one-use-each constraint is the whole exercise. It removes the option of writing have to six times, which is exactly what the speaking task showed students doing.

Why articles go missing under pressure. When attention goes to the tense or the modal, the smallest words are the first thing dropped. Your written articles are better than your spoken ones — that is normal, and it means the knowledge is there.

Fixing this is not about learning more rules. It is about attaching the article to the noun as one chunk, so you never have to decide mid-sentence: a-supervisor, an-intern, the-shift-manager, at-work, on-Mondays.

Error Correction

Six sentences. Three have an article too many; three are missing one. Fix each and say which kind it was.

1. She is manager of the whole department.

2. I finish the work at six and go to the home.

3. He wants to be pilot one day.

4. On the weekends I do not check the email.

5. We had long meeting about the new system.

6. The traffic is terrible in the mornings, so I take the train.

Teacher note Item 6 is a deliberate control. Students who have been told "Portuguese speakers add too many articles" will delete one here. Every article in it is correct, and noticing that is the point.
04
Guided Practice · 16 min

Repairing real sentences

Error Correction

Eight sentences from real workplace descriptions. Each has one error — modal or article. Rewrite each.

1. My brother is nurse and he must work nights every third week.

2. You don’t have to park in front of the loading bay.

3. We can to leave early on Fridays.

4. Last month I must cover three extra shifts.

5. The life in that company was very stressful.

6. She have to sign every form before it goes out.

7. You should to tell your supervisor if you are late.

8. I go to the work early because of the traffic.

With or without · The meaning changes

Six pairs where adding the changes what the sentence means. Match each phrase to its real meaning.

She is ill and being treated
She is inside the building — she might be visiting
Coffee in general — it is a thing I enjoy
This particular coffee, here, now
He was a pupil there
He went to the building to do a job
Teacher note This is the item that turns the zero article from an exception into a system. It carries meaning; it is not a word English forgot to include.
Open Cloze · Both systems at once

A paragraph with gaps of both kinds. Modals need one to three words; articles need a, an, the, or - for none.

Ines is pharmacist. She open the shop at eight — the health authority sets the hours, not her. She leave the controlled cupboard unlocked, not for a second. She wear a white coat, though she always does, because customers expect it. On Sundays the shop is closed, so she come in at all.

05
Communicative Task · 10 min

Be the editor

Task card · Pairs · Editing then speaking

Your partner wrote an induction paragraph in Lesson 4 and spoke for two minutes in Lesson 5. You are now their editor.

Take their written paragraph, mark it, and hand back a version that uses at least four different modals and has every article right.

  • Mark first, in the margin: E extra article, M missing, W wrong one, MOD wrong modal.
  • Then rewrite two sentences aloud to your partner, saying why you changed each one.
  • At least one of your changes must replace a have to with a modal that says something more precise.
  • Your partner may argue. If they can explain what they meant, they win.

The rule for the editor. You may not change a sentence you cannot explain. "It sounds better" is not an explanation. Name the rule, or leave it alone.

Teacher note Editing another person’s text moves the same knowledge from recognition to production more reliably than correcting your own, because nobody is defending anything. Take the arguments seriously — a student who can justify have to over must has learned the lesson.
06
Feedback · 4 min

The four hardest

Error Correction

Four errors that survive most correction. Fix each, then say the correct version aloud three times.

1. She have to work on Saturday.

2. In the my office we start at nine.

3. You mustn’t to use the front entrance.

4. I am working here since three years.

Teacher note Item 4 is deliberately beyond this unit. Name it, do not teach it — students produce it constantly at A2 and telling them it has a name and a later lesson stops it becoming a private mystery.
07
Wrap-up · 3 min

Your own two

Exit check

Three questions. Answer without looking back.

1. Which sentence tells a colleague that something is forbidden?

2. Which is correct?

3. He is in hospital and He is in the hospital —

Before next lesson. Choose the two modals you use least — they are on your tally pages. Write one true sentence with each about your workplace.

Bring both. Next lesson you write the piece that goes into your portfolio, and those two sentences are going into it.