One of Popeye's catchphrases is "I yam what I yam, and that's all that I yam,", so maybe "am" or "yam"?
"Popeye...SAVE ME Popeye!"
Popeye the Sailor - 1960 Popeye's Used Car 1-102 was released on: USA: 1960
Straight is commonly an adjective. It may be used as a transative verb or a noun.
The preposition "to" is commonly used with the verb "attempt". For example, "She attempted to climb the mountain."
Prosper is commonly used as a verb.
It can be used as a verb in come contexts. It's more commonly a noun though.
"Strong" can be both an adjective and an adverb, but it is not commonly used as a verb or a noun.
Offer
While it is more commonly used as a noun, it can also be used as a verb. For instance: "I like to parachute through the air."
The verb form of anxiety is "to anxietize," although it is not commonly used in everyday language.
The verb form of the word "nice" is "nicen," although it is not commonly used.
"After" is a preposition, not an action verb. It is commonly used to indicate the time following an action or event.