Modals

Modals
can, be able to, could, may, might, must, have to, need to, don't have to, should, ought to, had better, will, shall, needn't

Synonyms
manage to (ability)
be allowed to / allow to (permission)

Characteristics
- 3rd person singular without -s
- after a modal: infinitive without to
- questions without do
- no -ing (no progressive form)
- they don't have all the tenses
    can: only present
    could: only past, conditional
    must: only present
    have to: present, past, future

Obligation
Present: have to, must, need to
Past: had to, needed to

No obligation
Present: don't have to, don't need to, needn't
Past: didn't have to, didn't need to

Permission
can, may, could, be allowed to / allow to
(formal: may, could)

Advice
should, ought to, had better

Ability
can, could, be able to, manage to

Possibility
can, could, be able to

Deduction
must, may, might, can't
(nowadays synonyms: may, might)

Prohibition
musstn't, not allow to / not be allowed to

Suggestions and offers
shall

Requests
will, can, could


be able to forms
Present: I am able to ...
Past: I was able to ...
Future: I'll be able to ...
Present Perfect: I have been able to ...
Infinitive: I'd like to be able to ...
Gerund: I love being able to ...
Going to: I'm going to be able to ...

Adjectives: after verbs / word order

-ing / -ed

-ing : cómo es una persona o cosa (ser)
-ed : cómo se siente una persona (estar)

I'm bored (I feel bored)

The film is boring
He is a boring person

Adjectives Order

rules: ODACOM / ODSACOM

Opinion : beautiful, nice, ugly
Dimension : big, small, long, fat, thin, round, square
Size/Length : big, small / long
Width/Shape : fat, thin / round, square
Age : old, young, modern, new
Color : blue, yellow, red, sunny
Origin : African, French, Italian
Material : plastic, metal, iron, glass, wooden, woolen, golden

2 colors: blue and yellow

IE
a beautiful big old blue African metal table

Connectors

Contrast

However
Yet
Although
Through
Even though
In spite of
Despite
But




Apart from this...

prefixes

un-
in-
im-
ir-
il-
dis-
non-

 mis-

over-

under-

co-

re-

pre-

post-

super-

inter-

anti-

pro-


CLUES

p... : im-
l... : il-
r... : ir-

Adjectives: Comparative / Superlative

Comparative

1 syllable
-er : older, cheaper, nicer, slower
CVC double de consonant : bigger, hotter

2,3,4 syllables
more / less : more expensive, less interesting

-y   (1,2,3,4 syllables)
-ier : easier, heavier, happier, scarier

irregular
good : better / bad : worse / far : further

Superlative

1 syllable
the -est : the oldest, the cheapest, the nicest, the biggest

2,3,4 syllables
the most / the least : the most expensive, the less interesting

-y   (1,2,3,4 syllables)
the -iest : the happiest, the easiest, the heaviest

irregular
the best / the worst / the farthest, the furthest

Comparison with adverbs

more / less : more slowly

Comparison with as..as

as big as
not as good as
the same .. as

Modifiers

a bit : un poco
a lot, much : mucho

Your T-shirt is expensive
Your T-shirt is more expensive
Your T-shirt is a bit more expensive
Your T-shirt is a lot more expensive
Your T-shirt is much more expensive

Present Perfect Simple / Present Perfect Continuous

Present Perfect Simple

USE
- past action continues to the present
- completed past action still important in the present

IE
[+] He has visited his uncle
[-] He hasn't visited my his uncle
[?] Has he visited his uncle?

COMMON WORDS
- since, for
- already, yet, ever, just
- How long ... ?

Present Perfect Simple (2)

USE
- result of an action
- how many times an action happens
COMMON WORDS
- How many ... ?  ( result )

Present Perfect Continuous

USE
- process and duration of an action
- an action has either finished very recently or is incomplete
   (if you can see the effects of the recent action)

IE
[+] He has been writing a letter
[-] He hasn't been writing a letter
[?] Has he been writing a letter?

COMMON WORDS
- How long ... ?   ( action ) (hasta ahora, y todavía continúo)
- waiting for

Both / Neither / Either

both [+]
They both have red hair
Both the mother and the son have red hair
Both of them have red hair

neither [-]
Neither the father nor the son wears glasses
Neither of them wears glasses

either [+]
They look either Spanish or Mexican
either [-]
She doesn't really look like either her mother or her father