en_gwt/g1481-g1490/g1487.md

# εἰ/ei
This word changes the meaning of the words near it in some way. It is a particle. 

* This word is used when questioning something or talking about something that the writer is not sure about. When this word is used in this way, it means if or whether. 

Sometimes this word is used to organize what someone wrote. It relates two ideas or groups of words to one another in some way. It is a conjunction.

* This word is used when starting to write something that might be true. When this word is used in this way, it means if.
    * Sometimes the writer thinks what they are writing is true.
    * Sometimes the writer thinks what they are writing is not true. 

Sometimes this word is used with other words.

* When it is used with μή (G3361), it means if not, unless, or except. 
* When it is used with μήν (G3375), it means surely. 
* When it is used with εἴτε or τε (G1535, G5037), it means whether.