The verb for speech is speak.
As in "to speak to someone".
The part of speech for oscillate is verb.
The word verb is actually a noun!
The word "relinquish" is a verb.
The word "destroy" is a verb.
The word "intercede" is a verb.
verb
The word "receive" is a verb.
The word understand is a verb. The past tense is understood.
The word "indicate" is a verb.
The word "obtain" can function as a verb.
The word "revive" is a verb.
The word "deny" is a verb.