101 English Grammar Worksheets for English Learners English grammar worksheets for everyone. These worksheets are a favorite with students young and not. Larisa School of Language created over 100 worksheets to help anyone learn English.
IF and WHEN When can replace if in zero conditionals: If you heat water to 100 degrees Celsius, it boils. When you heat water to 100 degrees Celsius, it boils. In the other types of conditionals, we cannot use when instead of if.