Page 138 - Traveller_2nd_Pre-Interm_SB_SE

• We use mustn’t when we are not allowed to do something. Formation
You mustn’t smoke inside the building.
adjective + -er } + than
Comparative form:
The past tense of have to and must is had to.
NOTE Need is used: more + adjective
• as a main verb in all tenses, in the affirmative, John is older than Peter.
negative and question form. It is followed by to + My watch is more expensive than yours.
base form and forms the negative and question form + adjective + -est
with auxiliary verbs. Superlative form: the } + of/in
• as a modal verb only in the negative and question + most + adjective
form of the Present Simple. It is followed by a base John is the oldest boy in his class.
form and forms the negative and question form This watch is the most expensive of all.
without auxiliary verbs.
Affirmative All one-syllable and most two- short - shorter - the shortest
syllable adjectives take -er / -est.
I need to go
He/She/It needs to go One-syllable adjectives ending in safe - safer - the safest
We/You/They need to go -e take -r / -st.
One-syllable adjectives ending big - bigger - the biggest
Negative in one vowel + one consonant,
I don’t need to go I needn’t go double the consonant before the
He/She/It doesn’t need to go He/She/It needn’t go -er / -est.
We/You/They don’t need We/You/They needn’t Adjectives ending in consonant + easy - easier - the easiest
to go go -y drop the y and take -ier /-iest.

Questions Adjectives with three or more dangerous -
syllables and some two-syllable more dangerous -
Do I need to go? Need I go? adjectives take more + adjective / the most dangerous
Does he/she/it need to go? Need he/she/it go? most + adjective.
Do we/you/they need to go? Need we/you/they go?
Irregular forms
POSITIVE COMPARATIVE SUPERLATIVE
FORM
FORM
 Indirect questions © MM Publications FORM
• We use indirect questions when we ask for information. good better the best
Indirect questions begin with phrases like:
Can/Could you tell me...? bad worse the worst
Do you know...? farther the farthest
far
I’d like to know... further the furthest
Direct question many/much more the most
QUESTION WORD + VERB + SUBJECT little less the least
Where is the post office?
 Other Forms of Comparison
Indirect question
• as + adjective + as
PHRASE + QUESTION WORD + SUBJECT + VERB My car is as fast as yours. (= My car and your car are
equally fast.)
Can you tell me where the post office is?
• not as + adjective + as
He’s not as clever as you are. (= You are cleverer than he is.)
 Comparative and Superlative Forms
• We use the comparative form of adjectives when we Module 4
compare two people, animals or things.
• We use the superlative form of adjectives when we compare  Future will
one person, animal or thing with several of the same kind.
Affirmative

I will work
He/She/It will work
We/You/They will work

Negative
I will not / won’t work
He/She/It will not / won’t work
We/You/They will not / won’t work

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