Present Perfect Progressive — ongoing activities that started in the past
Must — logical deduction and strong obligation
Future Simple (will) — predictions and decisions about the future
Present Perfect connects a past event to the present moment. In investigation language: what Anna has found, what the con artists have done, what Robert has lost.
Anna has been following this team for three weeks. → still happening now
Robert has lost his entire savings. → past event, still relevant and painful
The con artists have built a fake identity. → result still exists
Have you ever been tricked by someone you trusted?
PPP emphasises the duration and ongoing nature of an activity:
Anna has been investigating this group for three weeks. (still investigating)
They have been planning this con for months. (long, deliberate preparation)
Robert has been waiting for his money to return ever since.
KEY CONTRAST: "She has written the report." (PP — finished) vs "She has been writing the report." (PPP — still in progress)
Two uses — teach both:
Deduction: He must be part of the team — he knew too much. / She must have known about the scam all along.
Obligation: The police must investigate this immediately. / You must report fraud to the authorities.
Note: must not = prohibition; don't have to = no obligation. These are different — contrast briefly.
The con artists will move to a new city once Anna publishes her story. (prediction)
Robert says he will never trust a stranger again. (decision / promise)
The police will arrest them — it's only a matter of time. (prediction)
Contrast with going to (planned) when appropriate at B2 level.
· PP: I've lost / I've been thinking / has completely disappeared / They've opened / have been operating / he has used
· PPP: I've been thinking about it ever since / I've been waiting for six weeks / have been operating under different names / this has been happening for too long
· Must: he must have been planning / he must have used / someone must be held responsible / the law must change
· Will: I would receive returns / they will move / I will never trust / that won't bring it back
Ex 2 (complete): 1. has been investigating (PPP) 2. has lost (PP) 3. have been planning (PPP) 4. must be (must/deduction) 5. will never trust (Future) 6. must report (must/obligation) 7. has disappeared (PP) 8. will move (Future) 9. have been operating (PPP) 10. must have used (must+perfect)
Ex 3 (must — deduction or obligation?): 1. deduction 2. obligation 3. deduction 4. obligation 5. deduction
Ex 4 (PP vs PPP): 1. has written (PP — finished) 2. has been writing (PPP — still in progress) 3. has investigated (PP — result) 4. have been investigating (PPP — ongoing) 5. has disappeared (PP — result, complete)
Ex 5 (errors): 1. has lost (PP — not 'lost' bare) 2. have been planning (PPP) 3. must be (deduction — not 'must to be') 4. will arrive (Future Simple — not 'will arriving') 5. has been waiting (PPP — 'for six weeks' signals duration)
Task 2: (1) six weeks / thirty years (2) must have been planning / build trust (3) have been waiting / six weeks (4) must have used / false identity (5) will move / will never trust
The Long Con
Vocabulary
VocabularyGrammar
GrammarA past event with a connection to the present — result, experience, or recent news.
Anna has discovered a new scam. (result — she knows now)
Robert has lost his entire savings. (still affects him now)
Have you ever been tricked by someone you trusted? (experience)
Time words: already · just · yet · ever · never · recently · for · since
An activity that started in the past and is still continuing — emphasises duration.
Anna has been investigating this group for three weeks. (still investigating)
They have been planning this con for months. (long preparation)
Robert has been waiting for his money ever since. (still waiting)
KEY: PP = finished action / PPP = activity still in progress
"She has written the report." ← done · "She has been writing it." ← still going
Two uses — deduction and obligation.
Deduction: He must be part of the team — he knew too much.
She must have known about the scam from the start. (past deduction)
Obligation: The police must investigate immediately.
You must report any suspicious financial contact.
Note: must not = forbidden · don't have to = not necessary
Predictions, promises and spontaneous decisions.
The con artists will move to a new city soon. (prediction)
I will never trust a stranger with my money again. (promise / decision)
The police will catch them — eventually. (confident prediction)
Negative: won't · Question: Will they be caught?
Write PP or PPP for each sentence. Ask: is the action finished or still in progress?
Use: Present Perfect · PPP · Must · Future Simple.
Write D (deduction) or O (obligation) for each sentence.
Choose the correct form. Think: is the action finished or still in progress?
Each sentence has ONE mistake.
Reading
ReadingWrite full sentences.
Write T, F or NG.
Listening
ListeningCircle A, B or C.
Write ONE, TWO or THREE words for each gap.
Interview Notes — Robert
Find one example of each structure. Write the exact words.
Speaking
SpeakingWork in pairs. One is Anna, one is Robert. Use all four grammar structures. Then swap.
Card A — Anna (Journalist)
- "How long have you been waiting for…?" [PPP]
- "What has happened since…?" [PP]
- "He must have known about you before…" [Must]
- "What will you do now?" [Future]
- "Have you ever trusted someone like this before?" [PP]
- "The police must act — don't you think?" [Must]
Card B — Robert (Victim)
- "I've been waiting for weeks…" [PPP]
- "I've lost everything I worked for…" [PP]
- "He must have been planning this…" [Must]
- "I will never trust a stranger again…" [Future]
- "They have been doing this for years…" [PPP]
- "The law must change to protect people like me." [Must]
Then swap.
Talk in groups of three. Use all four structures.
Writing
WritingOption A — Investigation Update: Write Anna's update to her editor: what she has found, what has been happening, and what she predicts will happen next.
Option B — Victim Statement: Write Robert's statement to the police: what has happened to him, how long he has been waiting, and what he believes must happen now.
Word count: 80–100 words
Present Perfect — what has happened / result
PPP — ongoing activity with duration
Must — deduction or obligation
Future Simple — prediction or decision
Plus at least FOUR vocabulary words from Handout 1

