在什麼時候用to

我想就你的問題，補充 GO 的用法。

Pattern 1: go + to + place

Examples:
go to school
go to church
go to the library

Exception: go home （說「回家」時，不需要 " to "）

Pattern 2: go + verb (present participle)（這種情況，不需要 " to "）

Examples:
go shopping
go swimming
go churching
go reading in the library

Go + Verb(ing form) 是表示參與一種活動的說法。

"To" is a preposition(介系詞,前置詞)or an adverb(副詞)
A preposition links nouns, pronouns and phrases to other words in a sentence while an adverb can modify a verb, an adjective, another adverb, a phrase, or a clause.

For example
The road leads to my home

In this sentence, to is a preposition. It works as a linkage to show the relationship between the road and my home.

Another example
The girl came to after a while

In the second sentence, to is an adverb to modify came but it is actually not a must.


Yes, you must add to behind go.
For example

Go to the bedroom now!
Go to get the mail as soon as possible.

...to +V. or N.
e.g.
1)I like to play ( v. ) with my friends.
2)I go to the church ( N. )every week