Sub unidad 4.1: Simple Present /A2
Present simple - uses (español)
Present simple uses - Parte 2
Present simple uses - Parte 2 (español)
Present simple - Subject - verb - complement
Present simple - Subject - verb - complement (español)
Rules for the Third Person concordance
Rules for the Third Person concordance (español)
Time expressions used with the Present Simple - Parte 1
Time expressions used with the Present Simple - Parte 1 (español)
Time expressions used with the Present Simple - Parte 2
Time expressions used with the Present Simple - Parte 2 (español)
Auxiliary verbs (español)
Verb to be - Positive Sentence
Verb to be - Positive Sentence (español)
Verb to be - Negative Sentence
Verb to be - Negative Sentence (español)
Verb to be - Questions and short answers
Verb to be - Questions and short answers (español)
Verb do - Parte 2 (español)
Adverbs of frequency (español)
Adverbs of frequency - parte 2
Adverbs of frequency - parte 2 (español)
Wh questions - Parte 1 (español)
Wh questions - Parte 2 (español)
Wh questions - Parte 3 (español)
Sub unidad 4.2: Present continuous /A2
Uses of the present continuous
Uses of the present continuous (español)
Present continous sentence structure
Present continous sentence structure (español)
Sub unidad 4.3: Past simple /A2
Past Simple - Parte 1 (español)
Past Simple - Parte 2 (español)
Past Simple - Parte 3 (español)
Spelling Rules for regular verbs
Spelling Rules for regular verbs (español)
Past simple: negative sentences with DID
Past simple: negative sentences with DID (español)
Past simple: questions with DID
Past simple: questions with DID (español)
Sub unidad 4.4: Future Tenses /B2
Future with Will (español)
Future tense: Questions using will
Future tense: Questions using will (español)
Future with Going to (español)
Future with Going to - Structure
Future with Going to - Structure (español)
Future with Going to - Negative sentence
Future with Going to - Negative sentence (español)
Future with Going to - Question form
Future with Going to - Question form (español)
Sub unidad 4.5: Present Perfect tenses /B2
Present perfect - Structure
Present perfect - Structure (español)
Present perfect - Time in the past
Present perfect - Time in the past (español)
Present perfect - Questions
Present perfect - Questions (español)
Present perfect - Contracted forms
Present perfect - Contracted forms (español)
Present perfect - Negative form
Present perfect - Negative form (español)
Since and for - Expressions
Since and for - Expressions (español)
Since and For - Complete the sentences
Since and For - Complete the sentences (español)
Present perfect progressive
Present perfect progressive (español)
Present perfect progressive - Structure
Present perfect progressive - Structure (español)
Present perfect progressive - Negative statements
Present perfect progressive - Negative statements (español)
Past Perfect - Uses (español)
Past Perfect - Structure (español)
Future Perfect - Uses (español)
Future Perfect - Structure
Future Perfect - Structure (español)
Future Perfect Continuos (español)
