Subject-Verb Agreement
Grandma is/are going to bake cinnamon rolls.
IS
Because Pablo forgot to cover the blender, his smoothie exploded all over the kitchen.
Because
Underneath a large rock, Meagan found her spare key.
Underneath
Cara is getting a massage at the spa; meanwhile, Rita is relaxing in the sauna.
Sometime tomorrow, Chris is going to stop by the house, so you need to be home.
Ty and Jay was/were at the basketball game last night.
WERE
After the day she spent at the museum, Kira needed to take a nap.
After
Henry pointed his bat toward the outfield and hit a home run.
Lin should leave for the airport now; otherwise, he might run into some traffic.
Otherwise
Either Brandon will walk the dog this afternoon, or I will have to do it later tonight.
Or
Seagulls has/have beaks perfect for snatching prey from the ocean.
HAVE
Gregory taught himself how to knit while he took a break from his homework.
While
Fred claims he saw a goblin in his closet.
In
Shay drinks orange juice every morning; Nina, however, prefers to have coffee.
Kiki tried to take a nap, but it was too noisy for her to sleep.
But
The litter of kittens play/plays in the backyard.
PLAYS
Tierra will be sad if it rains during the field trip.
If
At the candy store, Maria wanted to buy everything she saw.
At
Roger has a doctor's appointment; he, therefore, has to reschedule his piano lesson.
After the storm, Alexis saw a double rainbow, so he took a picture of it.
So
Three troops of Girl Scouts thank/thanks Mya for buying their cookies.
THANK
Terrence should be careful biking home since it's dark already.
Since
Kevin Durant is rooting for the other team.
Leslie found five dollars under her bed, she also found her lost shoe.
Also
Preston jumped on the trampoline and rolled down the grassy hill.
And