* Complete the rules in the grammar table with the words in the box. hasn't has when have haven't We use the present perfect to talk about things in the past. We don't know exactly they happened. 2 Affirmative: I/We/You/They He/She/It 3 Negative: I/We/You/They He/She/It + past participle + past participle + past participle + past participle​
