Ask who, what, where, when, why, and how — plus the words that join sentences.

• Beth?whatwhat | Beth wyt ti'n wneud? = What are you doing?
• Pwy?whowho | Pwy ydy hwnna? = Who is that?
• Ble?where (also written 'Lle?' in informal/northern usage)where | Ble wyt ti'n byw? = Where do you live?
• Pryd?whenwhen | Pryd mae'r trên yn dod? = When does the train come?
• Pam?whywhy | Pam wyt ti'n drist? = Why are you sad?
• Sut?how (also means 'what kind of' before a noun)how | Sut wyt ti? = How are you?
• Faint?how much / how manyhow much / how many | Faint mae e'n costio? = How much does it cost?
• Faint o...?how many (of) + nounhow many (of) | Faint o blant sydd gen ti? = How many children do you have?
• Pa...?which / what (+ noun, triggers soft mutation)which (+ noun) | Pa liw wyt ti'n hoffi? = Which colour do you like?
• Pa un?which one (standalone); often contracted to 'P'un?'which one | Pa un wyt ti eisiau? = Which one do you want?
• Faint o'r gloch?what time (lit. 'how much of the clock')what time | Faint o'r gloch ydy hi? = What time is it?
• Ydy...?is...? (yes/no question marker for 'he/she/it is')is...? (yes/no question) | Ydy hi'n bwrw glaw? = Is it raining?
• a / acand ('a' before consonants, 'ac' before vowels; 'a' triggers aspirate mutation)and | te a choffi = tea and coffee; bara ac afal = bread and an apple
• neuor (triggers soft mutation)or | Te neu goffi? = Tea or coffee?
• ondbutbut | Dw i'n hoffi te, ond mae'n well gen i goffi. = I like tea, but I prefer coffee.
• achosbecause (colloquial; 'oherwydd' in more formal Welsh)because | Dw i'n aros gartref achos dw i'n sâl. = I'm staying home because I'm ill.