nõustusin
nõustusin is the past tense first-person singular form of the Estonian verb nõustuma. Nõustuma translates to "to agree" or "to consent" in English. Therefore, nõustusin specifically means "I agreed" or "I consented." It indicates that the speaker, in the past, gave their approval or accepted a proposal, suggestion, or request. The verb conjugation in Estonian is highly inflected, and this particular form clearly identifies the subject as "I" and the tense as past. It is a common verb used in everyday communication to express agreement.