Action and Helping Verbs

In the following sentence is "are" a helping or a linking verb?
You are working very hard on this material.

• helping verb

• linking verb

_{What type of verb is the word in red?}

The boy mowed the lawn. 

• action verb

• linking verb

• helping verb

_{What type of verb is the word in red?}

The kitten slept on the couch.

• action verb

• helping verb

• linking verb

_{What type of verb is the word in red?}

In twenty more years, Bob will retire.

• action verb

• linking verb

• helping verb

_{What type of verb is the word in red?}

The class cheered during the game.

• action verb

• helping verb

• linking verb

_{What type of verb is the word in red?}

I did all of my homework.

• action verb

• helping verb

• linking verb

What type of verb is the underlined verb?

The girls danced all night.

• action verb

• helping verb

• linking verb

What type of verb is the underlined verb? My grandmother saw a snake in the garage.

• action verb

• helping verb

• linking verb

What type of verb is the underlined verb? During the winter, my dad shovels the snow on our driveway.

• action verb

• helping verb

• linking verb

What type of verb is the underlined verb?

George will cook macaroni and cheese today.

• action verb

• helping verb

• linking verb