ESL Grammar: Present Perfect Continuous Tense (Error Correction) Post author: Post published: Post category:Tenses Worksheets In this ESL grammar exercise, students rewrite each sentence and fix the mistakes. Download lesson as pdf You Might Also Like ESL Grammar: Present Perfect Tense (experiences and accomplishments) ESL Grammar: Present Tense (adding -s/-es to verbs) ESL Grammar: Past Tense (Error Correction)