Dewch ymlaen
The phrase 'come in' in Welsh is "dewch i mewn".
Some Bluebirds come from their Hushabye Mountain winter nesting grounds.
"Dee yma" is how you say "come here" in Welsh.
Cymraeg
"Na" is the word for "no" in Welsh.
"From" is "o". For example: "I come from England" is "Rydw i'n dod o Loegr".
"y diwedd" is how you say it in Welsh language.
Welsh ponies originated in Wales. Welsh people come from the same place, but this may be a coincidence.
You can say "Tud yma, boi!" (tid uh-ma boy) which is what I'd say, or if you wanna use the proper word for "boy" in Welsh then it's "bachgen" but it's less of a mouthful to say "boi", heh.
In Welsh, you would say "Rwy'n cytuno" to say "I agree."
Daeargi Cymreig
"She is" would be "mae hi" in Welsh.