Used to / didn't use to

This exercise combines the technical vocabulary from Troubleshooting article with the grammatical structures of the four types of conditional sentences.

Instructions: Complete the sentences using the correct form of the verb in parentheses and the appropriate vocabulary word from the list given.

In this ESL B1-level 20-item fill-in-the-blanks exercise, your students must complete each sentence with the verb in brackets in the gerund or the to + infinitive form.

English 4

English as a second language 
Worksheet on present perfect simple
 

• Main content: Present perfect
• Other contents: present perfect simple, form, positive, negative