You is not a verb
Mailed ... it's the past tense of the action verb, mail as in to 'mail a letter.'
a action verb starting with the letter Y could be yell.
No England is a not an action verb. England is a proper noun you can tell because it begins with a capitol letter.
X-ray
Incinerate
Yell
A verb is an action word. A letter that when you say it, means of debt is the letter O. If you are in debt, you owe somebody something.
It is an action verb.
Depending on the context, address is already a verb. For example, "to address something or someone" or "to address a letter" is an action and therefore a verb.
X-ray
Vote is an action verb. Vaccinate and vandalize are action verbs.
began is an action verb, not a linking verb.