My husband and I have been married for ○ years. It has gone by so quickly.
I've been married to my husband for ○ years. It seems like we got married just yesterday.
ーMy husband and I have been married for ○ years. It has gone by so quickly.
「夫とわたしは結婚して○年経ちます。あっという間でした。」
have been married for ○ years で「結婚して○年経った」と言えます。
It has gone by so quickly で「あっという間でした」
ーI've been married to my husband for ○ years. It seems like we got married just yesterday.
「夫結婚して○年になります。結婚したのが昨日のようです。」
I've been married to my husband for ○ years で「夫と結婚して○年になります」
It seems like we got married just yesterday で「結婚したのが昨日のようです」=「(結婚してから現在までが)あっという間に感じる」
ご参考まで!