1. Unit 15 Lights, camera, action! CAN examples practice MUST examples
HAVE TO
examples
practice
BE ABLE TO
examples
practice

2. MODAL VERBS: can Past: They couldn’t sleep last night.
grammar
unit 15
Examples
CAN
examples
Past: They couldn’t sleep last night.
Present: They can’t sleep.
Past: I could eat it.
Present: I can eat it.
Past: She couldn’t go.
Present: She can’t go.
Past: We could see it.
Present: We can see it.
Past: They couldn’t get married.
Present: They can’t get married.
practice
MUST
examples
practice
HAVE TO
examples
practice
BE ABLE TO
examples
practice

3. he, stay awake (present) I, work with others (past)
MODAL VERBS: can
grammar
unit 15
Practice
CAN
Make a sentence using can in the correct tense.
examples
practice
Example:
MUST
examples
We couldn’t do our homework.
practice
we, homework (past)
they, arrive (present)
she, sing (past)
he, stay awake (present)
I, work with others (past)
you, quiet (present)
we, absent (past)
HAVE TO
examples
practice
BE ABLE TO
examples
practice

4. MODAL VERBS: must She must talk to her mother-in-law.
grammar
unit 15
Examples
CAN
examples
She must talk to her mother-in-law.
We must buy one of those.
He must take notes.
They must not do that.
I must go home.
She must not take the blue one.
practice
MUST
examples
practice
HAVE TO
examples
practice
BE ABLE TO
examples
practice

5. MODAL VERBS: must Make a sentence using must in the correct tense.
grammar
unit 15
Practice
CAN
Make a sentence using must in the correct tense.
examples
practice
Example:
MUST
examples
We must get married.
practice
we, married
they, promise
she, take care of
he, choose
I, take
you, make
we, buy
HAVE TO
examples
practice
BE ABLE TO
examples
practice

6. MODAL VERBS: have to Past: They had to meet the best man last night.
grammar
unit 15
Examples
CAN
examples
Past: They had to meet the best man last night.
Present: They have to meet the best man now.
Past: I had to go to Hong Kong.
Present: I have to go to Hong Kong.
Past: She had to buy the red one.
Present: She has to buy the red one.
Past: We had to wait for five hours.
Present: We have to wait for five hours.
Past: They had to get married.
Present: They have to get married.
practice
MUST
examples
practice
HAVE TO
examples
practice
BE ABLE TO
examples
practice

7. MODAL VERBS: have to
grammar
unit 15
Practice
CAN
Make a sentence using have to in the correct tense.
examples
practice
Example:
MUST
examples
We had to ride the train.
practice
we, ride (past)
they, come (present)
she, pay (past)
he, become (present)
I, pay (past)
you, sleep (present)
we, get ready (past)
HAVE TO
examples
practice
BE ABLE TO
examples
practice

8. MODAL VERBS: be able to
grammar
unit 15
Examples
CAN
examples
Past: They were able to leave early last night.
Future: They will be able to leave early tonight.
Past: I wasn’t able to see my mother.
Future : I won’t be able to see my mother.
Past: She was able to buy tickets.
Future : She will be able to buy tickets.
Past: We weren’t able to climb the mountain.
Future : We won’t be able to climb the mountain.
Past: They were able to cancel the tickets.
Future : They won’t be able to cancel the tickets.
practice
MUST
examples
practice
HAVE TO
examples
practice
BE ABLE TO
examples
practice

9. you, stay awake (future)
MODAL VERBS: be able to
grammar
unit 15
Practice
CAN
Make a sentence using be able to in the correct tense.
examples
practice
Example:
MUST
examples
We were able to buy tickets.
practice
we, tickets (past)
they, talk (future)
she, eat (past)
he, buy (future)
I, go out (past)
you, stay awake (future)
we, forget (past)
HAVE TO
examples
practice
BE ABLE TO
examples
practice