ceigered:Aaa, dankon mnlg, mi komprenas vin

Tre bone

So I need to use 'kiuj' whenever I can could also use 'which', e.g. 'The things WHICH/THAT are free'

When by substituting 'that' with 'which', you do not have a 'clumsy' sounding sentence, yes. Since you seem to know a bit of Italian, then, if you can substitute 'che' with 'il quale/la quale/i quali/le quali', then it's "kiu(j)", otherwise it is "ke".

Very often 'ke' is right after the verb: "ĉiuj opinias, ke...", "mi aŭdis, ke...", "vi scias, ke...", which makes sense because, as I said, it introduces a direct object, or a subject, like for instance "plaĉas al mi, ke la suno brilas". ("I appreciate that the sun is shining", but, more literally, "[the fact] that the sun shines is pleasant to me").

mnlg:

ceigered:Aaa, dankon mnlg, mi komprenas vin

Tre bone

So I need to use 'kiuj' whenever I can could also use 'which', e.g. 'The things WHICH/THAT are free'

When by substituting 'that' with 'which', you do not have a 'clumsy' sounding sentence, yes. Since you seem to know a bit of Italian, then, if you can substitute 'che' with 'il quale/la quale/i quali/le quali', then it's "kiu(j)", otherwise it is "ke".

Very often 'ke' is right after the verb: "ĉiuj opinias, ke...", "mi aŭdis, ke...", "vi scias, ke...", which makes sense because, as I said, it introduces a direct object, or a subject, like for instance "plaĉas al mi, ke la suno brilas". ("I appreciate that the sun is shining", but, more literally, "[the fact] that the sun shines is pleasant to me").

Ok, I've got it now And yes, I'm relearning a lot of Italian at the moment so you also helped me with my Italian, I keep on forgetting those 'quale/questo/quello' words

Dankon denove

Ah, another Australian Esperantist. What city/state are you from?

Filanator:Ah, another Australian Esperantist. What city/state are you from?

Mi estas de Suda Aŭstralio (Live in Adelaide, born in Loxton (Riverland))

Mi estas NovSudKimriano. Mi loĝas en Sidnejo. La vetero bonas: ne tro varma somere, ne tro malvarma vintre.