In this task you are given a sentence. You must judge whether the main verb of the sentence is in present or past tense. Label the instances as "Present" or "Past" based on your judgment. If there is no verb in the given text, answer "Present".

[Q]: Jeff stiffened, then shook his head vigorously.
[A]: Past


[Q]: Mitchell stormed into the house.
[A]: Past


[Q]: He tipped the gas can and shoved the nozzle into the tank.
[A]:
Past