Escribe los verbos marcados en la forma correspondiente para crear oraciones con el condicional continuo.
Lucy (work) in London if she (speak) English.
Este campo es obligatorio.
would/should be working in London if she spoke English.
I (not eat) this disgusting fish if I (not be) so starving.
Este campo es obligatorio.
wouldn't/shouldn't be eating this disgusting fish if I wasn't so starving.
She (study) if she (have) an exam.
Este campo es obligatorio.
She would/should be studying if she had an exam.
Tom (not finish) his studies this year if he (work) harder.
Este campo es obligatorio.
Tom shouldn't/wouldn't be finishing his studies this year if he worked harder.
My mother (cry) if she (know) the thruth.
Este campo es obligatorio.
My mother should/would be crying if she knew the thruth.
If they (give) me the option, I (join) them.
Este campo es obligatorio.
If they gave me the option, I would/should be joining them.
I (clean) if I (have) time.
Este campo es obligatorio.
I should/would be cleaning if I had time.
You (not record) the movie if you (be) at home.
Este campo es obligatorio.
I shouldn't/wouldn't be recording the movie if I were at home.
If I (have) money, I (buy) clothes.
Este campo es obligatorio.
If I had money, I should/would be buying clothes.
Who (driving) around at this hour?
Este campo es obligatorio.
Who should/would be driving at this hour?
Resumir con IA:

Hola mi pregunta es si se puede poner would had. Cuando es past perfect.
Hola Juan, would had + verbo infinitivo es la forma del condicional perfecto. En el pasado perfecto no se usa «would». ¡Un saludo!
hola, tengo una duda : El adverbio NEVER, usado en el condicional perfecto, se coloca detrás de would o detrás de have???
I would NEVER have thought o I would have NEVER thought
es que lo he visto escrito y en ejercicios de las dos maneras y ya no se que es lo correcto.
Hola Africa, la forma correcta es I would have NEVER thought. ¡Un saludo!