Questions & Answers about Мій учитель допомагає мені щодня.
Мій means my and agrees with the noun in gender, number, and (in more complex sentences) case.
Here it’s:
- мій учитель = my teacher (masculine, singular, nominative)
Other common forms in the nominative:
- моя книга – my book (feminine, singular)
- моє місто – my city (neuter, singular)
- мої учителі – my teachers (plural, any gender)
So you choose:
- мій for masculine singular nouns
- моя for feminine singular
- моє for neuter singular
- мої for any plural noun
Учитель is grammatically masculine – it ends in a consonant and refers to a (usually male or unspecified) teacher.
To highlight that the teacher is female, Ukrainian often uses a special feminine form:
- учителька – a female teacher
So:
- Мій учитель допомагає мені щодня. – My (male/unspecified) teacher helps me every day.
- Моя учителька допомагає мені щодня. – My (female) teacher helps me every day.
Note how мій changes to моя when you use учителька, because учителька is feminine.