Verb to be - Past Tense (Verbo ser/estar - Tempo Passado)

Bem, já havia postado este verbo no tempo presente. Agora, colocarei-o no passado simples.
Ele apresenta dois significados: ser/estar e duas formas de escrevê-lo em inglês: was e were.

Verb to be - Past Tense
Affirmative form (Forma afirmativa)
I (eu) was (Eu era/estava)
you (tu) were (Tu eras/estavas)
He (ele) was (Ele era/estava)
She (ela) was (Ela era/estava)
It (ele/ela) was (Ele/ela era/estava)
We (nós) were (Nós éramos/estávamos)
You (vós) were (Vós éreis/estáveis)
They (eles/elas) were (Eles/elas eram/estavam)

Na forma negativa, a estrutura acima é a mesma, porém acrescenta-se o "not" após o verbo. Temos a "full form" (forma completa) e a "contract form" (forma abreviada). Observe:

Verb to be - Past Tense
Affirmative form (Forma afirmativa)I (eu) was not /(wasn't)
you (tu) were not / (weren't)
He (ele) was not / (wasn't)
She (ela) was not / (wasn't)
It (ele/ela) was not / (wasn't)
We (nós) were not / (weren't)
You (vós) were not / (weren't)They (eles/elas) were not (weren't)
* Wasn't e weren't contract form de was not e were not, respectivamente, e significam: não era, não estava, etc.

Por exemplo: He wasn't here yesterday. (Ele não estava aqui ontem.)
He was not here yesterday. (Ele não estava aqui ontem.)

They weren't my friends. (Elas não eram minhas amigas.)
They were not my friends. (Elas não eram minhas amigas.)

Temos, também a forma interrogativa deste verbo, a qual dá-se pela inversão de was e de were, colocando-se antes do personal pronoun (pronome pessoal). Acompanhe:

Verb to be - Past Tense
Interrogative form (Forma interrogativa)
Was I...?
Were you...?
Was he...?
Was she...?
Was it...?
Were we...?
Were you...?
Were they...?

Por exemplo: He was here yesterday. (Ele estava aqui ontem.) (Forma afirmativa)
Was he here yesterday? (Ele estava aqui ontem?) (Forma interrogativa)

They were my friends. (Elas eram minhas amigas.) (Forma afirmativa)
Were they my friends? (Elas eram minhas amigas?) (Forma interrogativa)

Any doubt? (Dúvidas?)