Verb to be in the Simple Present tense: Yes/no questions; Affirmative and negative statements; Some questions with What; Possessive adjectives; Professions; Introductions; Spelling.
Simple Present: yes/no questions, statements, information questions. Verbs of routine. Questions with How often. Adverbs of frequency and time expressions (every day, on Sundays, etc)
Present Continuous: yes/no questions, information questions, statements. Present Continuous meaning a future plan. Common verbs. Prepositions of place: behind, between, in front of, etc.