Duda con respecto al does
porque se escribe how many children does she have? y no how many children does she has?
5 Answers
Para hacer una pregunta, Los angloparlantes a veces emplean el verbo auxiliar, "do or does".
"Does" es para tercera persona singular "do" es para las otras personas. Por eso vemos la frase: "How many children "does" she have" (Nota: se usa la forma básica "have" cuando se emplea "do/does")
En español no hay verbo auxiliar "do/does" decimos el equivalente de, "How many children **has she?"**
Entonces, en español es : ¿Cuántos hijos tiene ella?
Otro ejemplo. Do you speak English? En inglés antiguo decían "Speakest thou English?" porque en aquel entonces no había el verbo auxiliar "do/does" por eso lo decían como lo decimos in español. ¿Hablas inglés?

Se usa "do" aquí como verbo auxiliar.
Cuando usas do no conjugas el verbo asociado (have), en vez de esto conjugas do- es semejante, aunque quizás no exactamente lo mismo (no estoy seguro de esto), a usar algo como puedo usar, puedes usar etc., cuando no conjugas usar, sino conjugas poder. Pero cuando respondes, sí, es necesario conjugar el verbo have, porque no usas do.
¿Cuántos hijos tiene ella? Tiene dos. How many children does she have? She has two.
¿Cuántos hijos tengo? Tengo tres. How many children do I have? I have three.
¿Cuántos hijos tienen ellos? Tienen uno? How many children do they have? They have one.
No dirías ¿Puede usted usa esto?, dirías ¿Puede usted usar esto?. O ¿Usa usted esto? Solo conjugas el verbo principal de la frase.
The question is "How many does she have because it may be in the plural**
more than 1 child we need to use have
the answer can be ,"she has 1 child
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There has been some rapid progress ...
There has have been some rapid developments ...
These two sentences are correct. "There has been some rapid progress" is correct, because "progress" is an uncountable noun (ie. nouns that we can't count, so don't have different plural forms), therefore it can only take a singular verb; here "has", not "have"
There have been some rapid developments", since the noun here , "developments" is in the plural form; therefore it needs a verb in the plural; here, "have" , not "has"
I think it is because you use the infinitive. We use does with she, he and it and do with all the other subjects.
Do you have children? if you ask a friend - yes I do or no I don't.
Does your brother have children? No he doesn't have children.
Do you want sugar in your coffee?. Yes I do. Does your brother want sugar in his coffee? No he doesn't.
I am not a teacher, so if I have the terms wrong someone will correct me!
You can say there has been some rapid progress because progress is a singular noun It does not matter how much progress theer has been...it is still written in the singular form! ![]()
It definitely sounds wrong to my ears as a native English speaker to say there have been some rapid progress!
You can say there have been some rapid developments
I hope this helps ![]()