Tense English language 9 Verb 5 Arabic language 4 Grammar 4 Study and teaching 3 English 2 Errors of usage 2 Foreign speakers 2 Grammar, Comparative 2 Malay speakers 2 Second language acquisition 2 Study and teaching (Secondary) 2 Usage 2 Aspect 1 Chinese language 1 Computer-assisted instruction 1 Computer-assisted instruction for foreign speakers 1 Contrastive linguistics 1 Detective and mystery stories, English 1 Discourse analysis 1 Functionalism (Linguistics) 1 Grammar, Comparative and general 1 Learning, Psychology of 1 Malay 1 Malay language 1 Perisan language 1 Persian 1 Persian language 1 Study and teaching (Higher) 1