INFINITIVES:
Classification:
Full infinitive: With “to’ e.g. He go to Paris to learn French.
Bare infinitive: Without “to’ e.g. My parent didn’t let me do what I really liked.
Perfect infinitive: Form “have past participles” e.g. He was believed to have escaped from the prison.
Positions:
2.1. Follow the verbs below:
agree
arrange
ask
attempt
begin
mean
need
neglect

care
cease
choose
claim
come
plan
prefer
pretend

continue
decide
deserve
demand
determine
propose
refuse
start

desire
expect
fail
fear
forget
strive
tend
threaten

hate
help
hesitate
hope
intend
offer
omit
Swear

learn
like
long
love
manage
prepare
promise
Seem

 try want wish…
2.2. Follow the idiomatic phrases: make up one’s mind/ take care/ take the trouble/ make sure/…
e.g. They couldn’t make up their mind to go or not.
2.3. Follow the adjectives below:
(un)able
afraid
amused
annoyed
anxious
interested
keen

ashamed
astonished
boring
careful
certain
(im)possible
proud

content
crazy
curious
dangerous
delighted
sorry
sufficient

determined
difficult
distressed
due
eager
usual
thankful

easy
hard
fortunate
free
frightened
worthy
wrong

furious
good
glad
grateful
happy
slow
scared

hopeless
horrified
impatient
safe
sure
useless
surprised

lucky
moved
pleased

(un)willing
wonderful
(un)wise

2.4. Follow WH-words: what/ who/ whom/ which/ when/ where/ how.
e.g. She didn’t know what to do next. We didn’t decided where to go.
2.5. Follow nouns pronouns of the verbs below:
advise
allow
ask
assume
beg
hate
suspect
Wish

believe
cause
challenge
command
compel
observe
trust
persuade

consider
enable
encourage
expect
find
order
permit
Tempt

forbid
force
get
guess
know
teach
tell
warn

imagine
instruct
intend
invite
think
understand
urge


lead
like
love
mean
want
prefer



2.6. To be demonstration, purposes, results: enough / save money/…
e.g. The house, to be demolished, is very old. She has nothing to eat.
We haven’t got enough to have one each. They saved money to go abroad.
2.7. To form absolute phrases: To tell the truth; To cut a long short story;…
e.g. To tell the truth, she was a real liar.
2.8. To form exclamation: e.g. To think she met with such a death! Oh! To be young again!