5th Grade Grammar Conditionals
Conditionals consist of the if-clause (guess), which begins with the word if, and the main clause, which shows the result of the guess.
Grade 4 Grammar Lesson 17 Negation
Grade 8 Grammar Lesson 4 The present perfect tense (I)
Grade 9 Grammar Lesson 38 Relative clauses
Grade 9 Grammar Lesson 6 Past simple
Grade 10 Grammar Lesson 5 Present perfect and past simple (3)
5th Grade Grammar Conditionals