are those mean the same いらっしゃる　おいでになる。 Seems like meaning is the same, or it is honorific and humble?

座る　掛ける　（to sit) what is the difference in usage.

What is the difference ... between ateji and gikun. to take for example: 煙草（たばこ）gikun 珈琲（コーヒー）ateji

大きい　大きな (difference and usage) in what case which is used, what is the difference?

polish question (could not choose other) do you always pronounce Ł as w. or L can also be used, Like I am confused with word głowa naturaly I would say glova, but maybe [gwova] is more correct also if I try to read I manage to figure out how, But if i try to spell the word I hear I just get stuck。Is there a pattern of spelling ir you just need to learn every word? thank you

could you explain usage of と here or even みると おじいさんがほってみると、 「ややっ、これはすごい！」 thank you

which form is better to use. I know they mean same. 食べることが出来る。 食べれる。 thank you

hi, I feel. this sentence in not quite correct, but not sure where... ペンより鉛筆使って便利から、鉛筆は日本語で書いて簡単だ/です。 thanks

VのがV 　VことがV in what case would you use verb のが verb and, Verb　ことが　verb. Thank you