Questions & Answers about Die Lehrerin ist sorgfältig.
Lehrer is the general word for teacher and is grammatically masculine.
To refer specifically to a female teacher, German usually adds -in:
- der Lehrer = the (male) teacher
- die Lehrerin = the (female) teacher
The article also changes:
- der for masculine singular
- die for feminine singular
So die Lehrerin clearly means a female teacher.
Die Lehrerin is in the nominative case.
Reasons:
- It is the subject of the sentence (the person who is something).
- The verb sein (to be) almost always takes:
- subject in the nominative
- and the adjective or noun that describes it (the predicate).
So:
- Die Lehrerin (subject, nominative)
- ist (verb)
- sorgfältig (predicate adjective describing the subject)