Modals of necessity
You ________ wear a seatbelt in Mexico. It's the law
Which modal shows you are almost 100% sure: "That _ be the answer. It fits every clue!"
Must
Change to passive: "The police arrested the thief."
The thief was arrested by the police?
Complete with a passive modal: "Legends can _ (tell) in many ways."
Be told
"This tower _ (build) in 1889."
Was built
Complete with a modal of advice: "You ___ visit the museum. It's amazing!"
Should
Name two modals that express about 50% possibility.
May, might, could
"The bank _ (rob) last night."
Was robbed
Stative passive: "The museum _ (close) on Mondays."
is closed?
Find the mistake: "You should of called me."
should have (not should of)
Complete with be supposed to: "In Britain, people _ (queue) politely."
Are supposed to queue
"The window is broken. Someone _ broken in last night." (very sure)
Must have
Change to progressive passive: "The detective is questioning the witness."
The witness is being questioned by the detective?
Rewrite starting with It is said that…: "People say that dragons guard treasure."
It is said that dragons guard treasure (or Dragons are said to guard treasure)?
"He didn't buy a ticket, but he _ (win) the lottery." (it was possible)
Could have won
"I didn't study for the test." Express regret: "I _ (study) harder."
Should have studied
"The gardener was in Cancún during the robbery. He _ (not/be) the thief." (very sure it's false)
can't have been / couldn't have been?
"The jewels _ (steal) before the police arrived."
had been stolen?
Rewrite with is believed to: "People believe that King Arthur lived in the 6th century."
King Arthur is believed to have lived in the 6th century?
Make it passive: "Someone must have stolen the painting."
The painting must have been stolen?
Complete using a modal of necessity or obligation in the past: "The students missed the deadline because they didn't follow the instructions. They _ (read) them more carefully."
Should have read
A priceless diamond disappeared, but the security cameras show that every door remained locked. Complete using a negative modal of deduction in the past: "The thief _ (enter) through the main entrance."
Can't/Couldn't have entered
Transform into the passive voice, preserving both the modal and the perfect aspect: "The investigators should have examined the fingerprints before releasing the suspect."
The fingerprints should have been examined by the investigators before the suspect was released?
Rewrite using is believed to, keeping the correct verb tense: "People believe that an ancient civilization hid the treasure centuries before the kingdom fell."
The treasure is believed to have been hidden by an ancient civilization centuries before the kingdom fell
Correct all the grammatical mistakes in this sentence: "The ancient scroll must have stole before it was being hidden in the temple, where legends says it can still found today."
The ancient scroll must have been stolen before it was hidden in the temple, where legends say it can still be found today