关于to的用法什么时候是to do 什么时候是to v.ing,我就是分不清哪些时候to做介词.

关于to的用法
什么时候是to do 什么时候是to v.ing,我就是分不清哪些时候to做介词.

to
1.介词 (direction) 到
to France/London/school/the station
去法国/伦敦/学校/车站
we went to a party last night
我们昨晚去参加了一个聚会
the road to Manchester
通往曼彻斯特的路
2.介词 from here to London (as far as) 从这儿到伦敦
count to ten
数到10
3.介词 (position) 向
to the north/south
朝北/南
to the left/right
向左/右
nailed/stuck to the wall
钉/粘在墙上
4.介词 it's five/ten/a quarter to five (in time expressions) 差5分/10分/一刻5点
5.介词 (for,of) 的
the key to the front door
前门的钥匙
a letter to his wife
给他妻子的一封信
she is secretary to the director
她是主管的秘书
6.介词 to give sth to sb (indirect object) 给某人某物
talk to sb
对某人说
I sold it to a friend
我把它卖给了一个朋友
you've done something to your hair
你打理了你的头发
it was clear to me that...
对我来说这显而易见…
7.介词 damage to sth (after noun) (involving) 对某物的损害
a danger to sb
对某人的危险
repairs to sth
对某物的修理
8.介词 be friendly/kind/loyal to sb (towards) 对某人友好/仁慈/忠实
9.介词 30 miles to the gallon (in relation to) 每加仑可行30英里
A is to B as C is to D
A与B的关系就像C与D的关系
three goals to two
3比2
10.介词 come to sb's aid (purpose,result) 来帮某人的忙
sentence sb to death
判某人死刑
11.介词 from...to...(indicating range,extent) 从…到…
everything from seeds to vegetables
从种子到蔬菜的每样东西
from May to September
从5月到9月
12.介词 enter to the sound of drums (with) 随着鼓声进入
13.与动词连用 (simple infinitive) 与原形动词一起构成动词不定式
to go/eat
走/吃
to want/to try to do sth
想/试着做某事
14.与动词连用 (with vb omitted) 用来代替动词不定式或不定式短语,避免重复
15.与动词连用 I don't want to 我不想
you ought to
你应该
16.与动词连用 (in order to) 为了
I did it to help you
我这么做是为了帮你
measures to help developing nations
用以帮助发展中国家的措施
17.与动词连用 (equivalent to relative clause) 用作定语
I have things to do
我有事要做
he has a lot to lose
他要失去很多
18.与动词连用 (after adjective etc) 用于某些动词、名词、形容词后构成不定式
be ready to go
准备走
it's great to see you
见到你太好了
too old/young to do sth
年纪太大/太小以至于不能做某事
it's too heavy to lift
它太重了根本提不动
be old/young enough to do sth
到了做某事的年龄/足够年轻做某事
19.与动词连用 he awoke/arrived to find that everyone had gone (and) 他醒来/到了发现大家都走了
20.副词 push/pull the door to 把门掩上
to and fro
来来回回地
Some institutions are going to launch a new scheme to encourage more youngsters from poorer backgrounds to go on to college.
一些机构准备计划一个新项目,以此鼓励更多来自贫困家庭的年轻人进大学深造.
to come to a head/to be brought to a head
[situation+] 到了紧要关头
to tear sth to pieces {or} to bits {or} to shreds
[+paper,letter,clothes] 把某物撕成片{或}小块{或}条
He became a missionary to China in 1846,where he worked himself literally to death to convert the population to Christianity.
他成为一位传教士,在1846年去了中国,为了使那里人们皈依基督教,他在那里传道,直至生命的尽头.
We decided to go round the sun to meet to moon in order to see the city.
我们决定绕个大弯,看一下这个城市.
Bullies feel the need to be popular,to fit in,and often go to extremes to do that.
欺凌弱小者觉得有必要变得受欢迎,与人相处融洽,却往往为此而走向极端.
To bridge that gap we practically have to pull to pieces everything contemporary science has to say about the orders of nature.
为了弥合那个鸿沟,我们实际上不得不严厉批评当代科学对于自然界秩序的任何言论.
You just need to be able to talk to patients and to use your loaf.
你只要动动脑筋,并且能跟病人交流就可以了.
I try to reach out to my daughter but she doesn't want to have anything to do with me.
我努力和我女儿进行联系,但她一点都不想与我来往.
While most of the children of my age grumbled at having to go to the mosque to learn the Koran,I used to love it.[Source:Web Examples ]
与我同龄的孩子们大多很不情愿去清真寺学习《古兰经》,可我喜欢去.
再问： 翻译为去算介词么
再答： 算，后面加地点