Quantity determines either, nor is any of it sometimes used with a singular verb and sometimes with a plural verb when they act as subjects of the clause. Of course, if you turn the round of sentence, you have a plural subject that forces the plural form of the verb: The general rule is that the verb corresponds to the objects it contained: we use the singular form of the verb, if the subject is: the idea of plurality is also very strong in the following pair of sentences, so that either the singular or the multial is possible. : Subject verb contract with `quantity` determiners Although the singular verb may be formally correct, there is no strong preference for either in use. So I think you may feel free to choose what you think best according to, maybe how much you think the idea of plurality is. There is a chair and there is a table in the so room there is a chair and a table in the room. The subject-verbal agreement: The weak thumb of the subject-verbal grammar agreement… You don`t always agree! Note that we don`t usually start sentences in English with an indeterminate Nov sentence. We could say: what we are interested in are wheat varieties OR What we are interested in are wheat varieties In your example, there is Tanya, it is as if the items are counted separately: but we generally do not. If we want to say that something exists, we usually start the sentence with the grammatically word “empty” and we say: Verbal subject agreement that refers to something accounting, writes Tanya Savicheva of Russia: What is right? However, if the idea of plurality is strongly present, as it is in your sentence on wheat varieties, Tanya, then this rule is not always followed. So it is quite conceivable that you could also say: Compare the following pairs and see what you prefer: There is no chair and table in this room There is a chair and a table in this room?.