How do you use "Future Perfect Continuous" in a sentence?

By next month, I will have been working here for ten years. By midnight, she will have been driving for twelve hours. They'll have been living together for a year by Christmas. How long will you have been studying when you finish?

Future Perfect Continuous

Q: What does "Future Perfect Continuous" mean?

Emphasizes duration of an activity up to a future point Use 'will have been + -ing' to emphasize how long something will have been happening by a certain future time. Combines the meaning of duration (continuous) with completion before a time (perfect).

Grammar Pattern BritishAmericanAustralian ★★☆☆☆ Uncommon Neutral

Meaning: Emphasizes duration of an activity up to a future point

强调到未来某个时间点活动的持续时间

Enfatiza la duración de una actividad hasta un punto futuro

未来のある時点までの活動の継続時間を強調する

미래의 특정 시점까지의 행동의 지속 기간을 강조

Use 'will have been + -ing' to emphasize how long something will have been happening by a certain future time. Combines the meaning of duration (continuous) with completion before a time (perfect).

用'will have been + -ing'强调到未来某个时间某事将持续多久。结合了持续时间（进行时）和在某时间之前完成（完成时）的含义。

Usa 'will have been + -ing' para enfatizar cuánto tiempo habrá estado sucediendo algo para cierto momento futuro. Combina el significado de duración (continuo) con completar antes de un tiempo (perfecto).

「will have been + -ing」を使って、ある未来の時点までに何かがどれくらい続いているかを強調します。継続時間（進行形）と時間前の完了（完了形）の意味を組み合わせます。

'will have been + -ing'는 미래의 특정 시점까지 어떤 일이 얼마나 오래 진행되고 있었는지를 강조할 때 사용합니다. 지속(진행)의 의미와 특정 시점 이전의 완료(완료)의 의미를 결합한 형태입니다.

Examples

By next month, I will have been working here for ten years.
到下个月，我在这里工作就满十年了。
Para el próximo mes, habré estado trabajando aquí durante diez años.
来月までに、ここで10年働いていることになります。
다음 달이면, 여기서 10년째 일하고 있는 것이 됩니다.
By midnight, she will have been driving for twelve hours.
到午夜，她就已经开了十二小时的车了。
Para la medianoche, ella habrá estado conduciendo durante doce horas.
真夜中までに、彼女は12時間運転していることになります。
자정이면, 그녀는 12시간째 운전하고 있는 것이 됩니다.
They'll have been living together for a year by Christmas.
到圣诞节，他们同居就一年了。
Habrán estado viviendo juntos durante un año para Navidad.
クリスマスまでに、彼らは1年一緒に暮らしていることになります。
크리스마스가 되면, 그들은 1년째 함께 살고 있는 것이 됩니다.
How long will you have been studying when you finish?
你完成的时候，已经学习了多久？
¿Cuánto tiempo habrás estado estudiando cuando termines?
終わる時、どのくらい勉強していることになりますか？
졸업할 때쯤이면, 얼마나 오래 공부하고 있는 것이 되나요?

Pronunciation

Usage Guide

Context: written, formal, planning

Tone: emphatic

✓ Do Say

By 6pm, I'll have been waiting for three hours.
到下午6点，我就等了三个小时了。
Para las 6pm, habré estado esperando durante tres horas.
午後6時までに、3時間待っていることになります。
By 6pm, I'll have been waiting for three hours.
Next year, we'll have been married for 25 years.
明年我们结婚就25年了。
El próximo año, habremos estado casados durante 25 años.
来年で結婚25年になります。
Next year, we'll have been married for 25 years.
She'll have been teaching for 30 years when she retires.
她退休时已经教书30年了。
Ella habrá estado enseñando durante 30 años cuando se jubile.
退職時には30年教えていることになります。
She'll have been teaching for 30 years when she retires.
By then, they'll have been building it for five years.
到那时，他们已经建了五年了。
Para entonces, habrán estado construyéndolo durante cinco años.
その時までに5年間建設していることになります。
By then, they'll have been building it for five years.

✗ Don't Say

I will have been know him. (state verb)
I will have been know him.（状态动词）
I will have been know him. (verbo de estado)
I will have been know him.（状態動詞）
I will have been know him. (상태 동사는 사용할 수 없습니다)
She will been working. (missing 'have')
She will been working.（缺少'have'）
She will been working. (falta 'have')
She will been working.（「have」がない）
She will been working. ('have'가 빠져 있습니다)

Origin & History

Future perfect progressive aspect

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal