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Learn about future and perfect tenses of 'To Be', understand infinitive use as subject and object, and form verb stems. Translate sentences with 'verbal noun'. Practice forming predicate nominatives with examples. Use infinitive as direct object.
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Lesson 17 Tenses of ‘To Be’ AND Infinitive Used as Subject and Object
Principal Parts of ‘To Be’ Sum, esse, fui, futurus 1st 3 of the 4 Principal Parts - 1st person singular (present), infinitive, 1st person singular, perfect tense Stems How do we form the stem of the verb in present tense? To form the perfect stem: drop –i from 3rd part
Learning Targets • Recognize and know the future and perfect tense forms of the irregular verb meaning ‘to be’ • Gain an understanding of how the infinitive form of a verb can be used in a sentence. • Be able to translate a sentence using a ‘verbal noun’.
Present tense of ‘to be’ • Sum • ? • ? • Sumus • ? • ?
Future of ‘To Be’ • Hint – we use the word wIll when we talk about doing something in the future. The letter I is a key to remembering the future tense. ero erimus eris eritis erit erunt
Perfect of ‘To Be’sum, esse, fui, futurus fui fuimus fuisti fuistis fuit fuerunt
Infinitive Used as Subject • Which principal part of the verb is the infinitive? • The infinitive can be considered a ‘verbal noun’ (the form of a verb that can be used as a noun) • The infinitive, being a ‘verbal noun’ can be used as the subject of a sentence. • Ex. Errare est humanum (‘To err’ is human) • NOTE – the infinitive is not declined and is ALWAYS neuter (so any adjectives would be neuter as well).
Predicate Nominative • What is a predicate nominative? Give examples. • To have a predicate nominative in a sentence, what kind of verb must be used? • The infinitive, being a verbal noun, can be a predicate nominative. • Anything that can be the subject can be a predicate nominative. • Ex. To see is to believe – what is the subject? What is the predicate nominative?
Infinitive Used as Direct Object • The infinitive can be used as a direct object (since it is, after all, a ‘verbal noun’). Again, it is not declined, so you do not add the accusative case endings. • Ex. – She wants ‘to go’ to the mall. • Servos liberare parat. (He prepares ‘to free’ the slaves).
Objects of the ‘Verbal Nouns” • Servos liberare parat. • Being a ‘verbal noun’, the infinitive can also have an object; what word is the object of the infinitive in the above sentence? • Another example: Amicos habere est gratum. (To have friends is pleasing). What is the direct object of the infinitive?