1. "In" as a preposition indicating location or position:
* En: Encompassing, surrounded by (e.g., encircle, enclose)
* Im: Inside, within (e.g., immerse, implicate)
* Inter: Between, among (e.g., interweave, interact)
* Intra: Within, inside (e.g., intravenous, intracellular)
2. "In" as a prefix meaning "not" or "lack of":
* In-: This is the most common prefix for "not" (e.g., inactive, incomplete)
* Un-: Another common prefix for "not" (e.g., unhappy, unfair)
* A-: Often used before words starting with a consonant (e.g., atypical, amoral)
* Non-: Used before words starting with a vowel or "h" (e.g., non-essential, non-human)
3. "In" as part of a compound word with a specific meaning:
* In- followed by a word meaning "to go" or "to put" (e.g., inbound, input)
* In- followed by a word meaning "to make" or "to become" (e.g., inactivate, incriminate)
It's important to note that not all prefixes can be used with every word and some combinations might not sound natural. It's always best to check the dictionary or an online resource to ensure accuracy.