Answer:
Progressive
Explanation: The progressive shows that it will happen at some point or another. Words like 'will, be' shows this.
What is the underlined word?
Answer:
Thurber's foolhardy experience with Muggs was when Thurber picked the dog up by the tail. Thurber knew the dog couldn't bite him when he held him by the tail, but the dog j. erked and twisted so much that Thurber knew he was not going to be able to hold to dog that way for long.
Explanation: