No, "gladly" is not an adjective; it is an adverb. It describes the manner in which an action is performed, indicating that something is done with pleasure or willingness. The corresponding adjective is "glad," which describes a state of being happy or pleased.
You could add the suffix -ly to it to make the word gladly.
I would gladly listen to her sing all day.
gladly
The word fain is a mostly archaic adverb meaning "gladly" or "happily," and was also used as an adjective meaning "preferable."Example:"He would fain lose a fortune rather than disappoint a female acquaintance."
Command
No, it is not. It can be a verb (to greet in a kind, pleasant or inviting manner), or a noun (a welcoming expression or reception), or an adjective (gladly received, or agreeable).
I will gladly give you some sentences. He donated money gladly. She gladly paid to have her grass cut, rather than do it herself.
He gladly drove him to his house. He gladly took the job at this large firm.
you dont use gladly, sadly.
"I will gladly pay you Tuesday, for a hamburger today" - Wimpy (Popeye's friend)*The word gladly is always an adverb, meaning in a satisfied or happy manner.
You could add the suffix -ly to it to make the word gladly.
When used as an adverb lief means gladly or willingly. When used as an adjective lief means willing, desirous, dear, beloved or treasured. The word lief originated before 900.
I would gladly listen to her sing all day.
yes it is
gladly
Jack is such a good friend that he would gladly give up his time to help me.
The word fain is a mostly archaic adverb meaning "gladly" or "happily," and was also used as an adjective meaning "preferable."Example:"He would fain lose a fortune rather than disappoint a female acquaintance."