instruction:
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".
question:
His lips curved mockingly.
answer:
Past


question:
After the caboose lost it's wheels, it tipped to one side and slowly began to roll over as we crossed the bridge.
answer:
Past


question:
He crawls upward, using his claws as well as the cord.
answer:

Present