When do you put the word in front of a word?

It seems like you're asking about prefixes. Prefixes are word parts added to the beginning of a word to change its meaning.

Here are some examples of prefixes and how they are used:

* Un-: means "not" or "opposite of"

* Happy -> Unhappy

* Tied -> Untied

* Re-: means "again" or "do again"

* Read -> Re-read

* Start -> Restart

* Pre-: means "before"

* Game -> Pre-game

* Paid -> Pre-paid

How to know when to use a prefix:

* Understanding the prefix's meaning: The prefix must logically fit the word it is attached to.

* Word formation: Prefixes are often used to create new words with opposite meanings, intensified meanings, or to denote something that happens before or after the action of the base word.

Let me know if you'd like to learn about more prefixes or have specific words you'd like to explore!