Pueden ayudarme con ingles porfis?

Mira lo que debes de hacer es que cuando tu tengas al sujeto en she it he o i va con was ej : she was my teacher

si esta we they you con were puede estar en una oracion por ejemplo my mom and david eso iria con were porque si le sustituimos seria they y they va con were recuerda si esta 2 omas cosas o personas va con were si tambien esta la respuesta corta en negativo iria wasnt o werent

ej : she was mi teacher was she mi teacher?

No, she wasnt yes, she was

ej : david en anahela were singing were they singing no, they werent yes, they were por ejemplo en la primera de tu libro seria no, he wasnt

y en la pregunta como es he osea el un solo nombre una persona seria was hernan cortes born in mexico ?

Y asi intenta espero que te sirva.