This document provides instruction on forming sentences in the present perfect tense in English. It includes tables to fill in with the affirmative and negative forms of the verbs "climb" and "play" in the present perfect tense according to the subject of the sentence. The tables are followed by prompts for the reader to test their understanding of forming sentences in the present perfect affirmative and negative.

1. English Alive! Student’s Book 2 Whiteboard Presentation

2. Complete the table with the present perfect affirmative form of climb . Grammar Present perfect: affirmative climbed the mountain. climbed the mountain. climbed the mountain. climbed the mountain. We / You / They He / She / It You I Affirmative climbed have have climbed has climbed have climbed

3. Can you remember? Grammar Present perfect: affirmative climbed the mountain. climbed the mountain. climbed the mountain. climbed the mountain. We / You / They He / She / It You I Affirmative climbed have have climbed has climbed have climbed

4. Complete the table with the present perfect negative form of play . Grammar Present perfect: negative played basketball. played basketball. played basketball. played basketball. We / You / They He / She / It You I Negative played haven’t haven’t played hasn’t played haven’t played

5. Can you remember? Grammar Present perfect: negative played basketball. played basketball. played basketball. played basketball. We / You / They He / She / It You I Negative played haven’t haven’t played hasn’t played haven’t played