A powerpoint lesson on subject verb agreement with printable task cards to test for understanding.
This powerpoint starts off with whole class teaching to introduce the rules with regards to subject verb agreement. There are teacher prepared questions which the whole class can do together. After which, students can use the task cards given to test one another for understanding.
If you are looking for other English Grammar packages, I've more at the below links.
Singular and Plural Nouns
Mastering Main Idea and Supporting Details
Reading Fluency and Comprehension Passages