In other languages, the subjunctive is used much more frequently, usually indicating doubt, a tentative opinion, unreal conditions etc. The rules for when to use the subjunctive and in what tense need to be studied for each language separately. The auxiliaries used like this in English are called primary auxiliaries . I must go home. She can ride a bike .
Determiners are 'small' words used with nouns to relate a noun to a particular context or situation.
In many traditional grammar books you will find the term 'possessive pronoun' instead of possessive determiner. This is unhelpful, because possessive pronouns are different from possessive determiners. Adjectives used like this after the verb to be are known as predicate adjectives . Pronouns take the place of a noun and any other words which are grouped around that noun to form a unit in the sentence. I can see that tall blond boy .