The verb "to be" in Spanish must have been thought up by a brilliantly tangled mind, both fool and genius, and is one of the stumbling blocks in Spanish. It isn't much better in English, either, with "to be" , "am", "is" and "are" all jockeying for position!
It is one of perhaps ten important radically-changing verbs in the Spanish language (English has its share, also).
Both ser and estar mean "to be", although they cannot be used interchangeably without altering the meaning of the sentence.
Let's look, first, at the verb ser (to be).
The conjugation is as follows:

Spanish	English
(Yo) soy	I am
(Tú) eres	You are
(Él) es	He is
(Ella) es	She is
(Usted) es	You are
(Nosotros) somos	We are
(Ustedes) son	You are
(Ellos, Ellas) son	They are

As we have learned in previous Chapters, the subject does not need to be included. "Soy", for example, implies that "I am".

The verb denotes something essential or expresses a characteristic, about a person or thing:

(Yo) soy creativo	I am creative
(Tú) eres creativo	You are creative
(Él) es creativo	He is creative
(Ella) es creativa	She is creative
(Usted) es creativo	You are creative
(Nosotros) somos creativos	We are creative
(Ustedes) son creativos	creative
(Ellos) son creativos	They are creative
(Ellas) son creativas	They are creative

The verb "estar" [to be ] is used mostly to denote a subject's location, condition or position, relative to something or someplace:

(Yo) estoy aquí	I am here
(Tú) estás aquí	You are here
(Él) está aquí	He is here
(Ella) está aquí	She is here
(Usted) está aquí	You are here
(Nosotros) estamos aquí	We are here
(Ustedes) están aquí	You are here
(Ellos, Ellas) están aquí	They are here

This fairly covers the usage of this odd verb. You will learn to recognize the proper usage and inuendos as you explore the language further. In the above example, you will note that está is accentuated on the last syllable. This differentiates the verb from the article "esta" [f], wherein the emphasis (stress) is on the first syllable: ES-TA (see chapter seventeen]. The importance of the accent becomes obvious when differentiating between words that are similarly spelled.
Consider the following:
When using the Article esta and the verb está in the same sentence, it would look like this:

este señor está aquí	this gentleman is here
esta señora está aquí	this lady is here

Señor and Señora are the polite designations for gentleman and lady, similar to "Sir" and "Madam", or "Mister" (Mr.) and "Mrs." in English. They are abbreviated Sr. (Señor), and Sra. (Señora).

Diminutive & Augmentative Nouns

In Spanish, you don't need an adjective to make a noun "tiny".
You simply add a suffix! (called the "Diminutive form")

There's ...ita for femenine-gendered nouns [f]

and ...ito for masculine-gendered nouns [m]

La casa [f] (The house) becomes	La casita (The tiny house)
El perro [m] (The dog) becomes	El perrito (The tiny dog)

Attaching ...ita [f] to Señora (Lady, or Mrs.) converts it to "Señorita" (little Lady, or Miss)!
The abbreviation for Señorita is "Srta".
There is no accepted word in Spanish for "Ms", although the slang "Seño" is often used.

You can also make a noun large with a Suffix (called the "Augmentative form")

There's ...ota for femenine-gendered nouns [fl

and ...ote for masculine-gendered nouns [m]

La casota (The big house)

El perrote (The big dog)

The possibilities are endless!