Is.
There is no such word, or a need for one. The word "sponsor" is already a noun applied to a person, group, or company.
Were is the verb in that sentence.
Ran is the verb in that sentence>
Startled is the verb in your sentence.
If the verb is the whole sentence, then it is not a sentence, but a sentence fragment. A sentence requires at least a subject and a verb. Examples of Sentence Fragments: Run. Hide. Watch.
Frank was your sponsor
The past tense would be Frank was your sponsor.
There is no such word, or a need for one. The word "sponsor" is already a noun applied to a person, group, or company.
The verb is the action word in a sentence that describes what the subject is doing.
Under Armor is a sponsor of the Temple University sports teams.
noone cares
The noun and the verb are both spelled sponsor.
The verb in that sentence is "are".
Were is the verb in that sentence.
Present perfect is formed with -- have/has + past participle -- the past participle of ask is asked. So the present perfect verb would be have asked or has asked.Because we is plural use have asked in this sentence.We have asked Madame Mathias...............You need to change will sponsor to would sponsor to make the sentence correct.We have asked Madam Mathias if she would sponsor our French club.
Depending on the context, sentence is already a verb For example, "to sentence someone" is an action and therefore a verb.
"The way she criticized my art was frank, but completely fair.""We had a frank discussion on the future of the team."(frank can also be used as a verb, to stamp with a mark showing postage was paid)"Members of Congress are allowed to frank their official postal mail."