How do you say is in welsh?

"Is" in Welsh depends on the context. Here are a few possibilities:

* "Ydy" (pronounced "uh-dee"): This is the most common way to say "is" in Welsh, used as a general present tense form. For example: "Ydy hi'n rhydd?" (Is she free?)

* "Mae" (pronounced "my"): This is another common form of "is," used when talking about something existing or happening. For example: "Mae hi'n gweithio yma." (She works here.)

* "Yw" (pronounced "ee-oo"): This is used in questions and sometimes with certain verbs. For example: "Pwy yw hwn?" (Who is this?)

* "Yn" (pronounced "un"): This is used with adjectives and sometimes with verbs, signifying "being" in a certain state. For example: "Mae hi'n dda." (She is good.)

The best way to determine which form of "is" to use is to consider the context and the verb being used.