Study and teaching 21 English language -- 11 German language -- 11 Spoken English 10 Spoken English -- 6 Vocabularies 6 English language 5 more ... Grammar -- 5 Pronunciation 4 Speaking 4 Spoken German 3 Dictionaries -- 2 French language 2 Arabic language 1 Business English 1 German language 1 Grammar 1 Interpersonal communication 1 Oral communication -- 1 Public speaking 1 Public speaking -- 1 Self-presentation 1 Spanish language 1 Spanish language -- 1 Speechwriting 1 Translating services -- 1 less ...