まだ, 未だ, いまだ
Adverb, Usually in kana
1. still, as yet, only
with verb in the negative
2. (not) yet
Only まだ
3. more, (more) still
4. at least, comparatively, relatively
NA-adjective
5. unfinished, incomplete, not yet done
私はまだその問題が解けない。
時, 刻, 秋, とき
刻 signifies a time of day; 秋 signifies an important time
1. time, hour, moment
Only 時, Adverb
2. occasion, case
3. chance, opportunity, season
4. the times, the age, the day
Linguistics terminology
5. tense
12才の時彼は声変わりした。
時, じ
Suffix
1. hour, o'clock
May take 'no', See 緊急時
2. (specified) time, when ..., during ...
12才の時彼は声変わりした。
時, どき
Noun, used as a suffix, Adverb, See 食事時, See 売り時, after noun or -masu stem of verb
1. time for ..., time to ..., good opportunity to ...
See 梅雨時, See 花見時
2. season
12才の時彼は声変わりした。
だ
copula, See である, See です, plain copula
1. be, is
Auxiliary verb, See た・1, た after certain verb forms; indicates past or completed action
2. did, (have) done
See た・2, indicates light imperative
3. please, do
よ
Particle, at sentence-end; indicates certainty, emphasis, contempt, request, etc.
1. hey, you, hold on
Interjection
2. yo