Como convertir una oración en pregunta, y contestar si y no en forma formal e informal?

Te daré las formulas para hacer las oraciones en pregunta.

V. AUX = Verbos auxiliares (Do, does, did, have, has had)

V.

ToBe = Verbo To be (Am, is, are, was, were)

VPP = Verbo en participio

V.

Ing = Verbo en progresivo, ejemplo : "Playing (Play + ing)"

S = Sujeto.

C = Complemento.

AF = Adverbio de frecuencia (always, often, almost always, never.

) Esta se coloca después del sujeto y antes del verbo cuando se utilizan los verbos auxiliares, por ejemplo : She always does her homework on time?

Y para los verbos To Be, se coloca después del verbo, ejemplo : She is always paying attention to the teacher.

Presente simple : V.

AUX o V.

ToBe + S + C ?

Is your sister at home?

Formal : No, she isn't.

She is at the park.

Yes, she is.

She is doing her homework.

Informal : No, she is at the park.

Yes, she is doing her homework.

Pasado simple : V.

AUX o V.

ToBe + S + C ?

Futuro : V.

Will + S + V + C ?

Con el going to sería : V.

ToBe + S + Going to + V + C?

En Presente y pasado perfecto sería : V.

Have / Has / Had + S + VPP + C ?

En presente y pasado perfecto continuo sería :

V.

Have / Has / Had + S + Been + V.

Ing + C?