1) ~하는 것/ ~ 하기는 동명사나 to 부정사를 쓴다.
my hobby is exercising
my hobby is to exercise
2) 해야할 명사, 명사 + to 부정사
I have homework to do
I had time to shop
3) ~하기 위해는 to 부정사
I studied hard to get a good grade
She want to stay with her family
I studied hard in order to get a good grade
I studied hard so as to get a good grade
4)동명사를 목적어로 하는 동사
admit
avoid
deny
enjoy
give up
postpone
practice
quit
She denied cheating on the test.
Above all, teenagers enjoy spending time with their friends.
5) to 부정사를 목적어로 쓰는 동사
agree
ask
choose
decide
demand
hope
learn
plan
promise
want
6) 전치사의 목적어는 동명사를 사용한다
I object to going there.
I look forward to seeing you.
She is not used to getting up early.
7) to 부정사는 미래, 동명사는 했거나 그 자체
I like to dance 나는 춤을 추고 싶다.
I like dancing 나는 춤추는거 좋아한다.
8) 부정문은 not + to 부정사/동명사
Not having a computer is inconvenient
I decided not to give up
9) 무엇을/어디서/언제/어떻게 ~할지 what/where/when/how to 부정사
I forgot what to say.
10) A에게 to 부정사 할것을 ~하다. 동사 + A + to 부정사
advice
allow
ask
help
promise
tell
want
He asked me to leave.
Long summer vacation allows students to study abroad.
11) 너무 ~해서 ~할 수 없다 too 형용사 to 부정사 (not 없음)
The bread is too hard to slice
12) to 부정사 할만큼 충분히/충분한 형용사 enough to 부정사/ enough 명사 to 부정사
He is rich enough to buy a big house
He is enough money to buy a big house