1. Subject-Verb Agreement Subjects and verbs must agree with each other in number. Ex: The dog chases the cat. // The dogs chase the cat.

2. Compound Subjects - Rules Two or more singular (or plural) subjects joined by and act as a plural subject and take a plural verb to agree. Two or more singular subjects joined by or (or nor) act as a singular subject and take a singular verb to agree.

3. Write the sentences below and circle the choice that makes for the subject and verb agree. 1. Democrats and Rebuplicans (is, are) electing a new leader. 2. Neither threats nor hostile action (scares, scare) the enemy. 3. The actors and the director (understand, understands) the lighting problems. 4. The surfer or the swimmer (is, are) responsible for the littered beach.