Learn Romanian: Bunica este mereu veselă. - The grandmother is always cheerful.

In Romanian, the basic word for "grandmother" is bunică. To say "the grandmother", you drop the final -ă and add the feminine definite article -a to the end of the word, making it bunica.

Could I put mereu at the beginning or end of the sentence instead?

Yes, Romanian word order is flexible. You could say Mereu este veselă bunica or Bunica este veselă mereu. However, placing adverbs of frequency right after the verb, as seen here, is the most natural-sounding choice for everyday speech.

Why does the adjective end in -ă (veselă)?

Adjectives in Romanian must match the noun they describe. Because bunica is a feminine singular noun, the masculine dictionary form of the adjective (vesel) must change to its feminine singular form, which is veselă.

I've also learned the word întotdeauna for "always". Could I use it here instead of mereu?

Yes, you can absolutely say Bunica este întotdeauna veselă. Both mereu and întotdeauna mean "always" and are interchangeable here, but mereu is very common in casual conversation because it is shorter.