There are 9 parts of speech or word classes in English language:
– nouns
– pronouns
– determiners
– verbs
– prepositions
– adjectives
– adverbs
– conjunctions
– interjections

Tense is a variation in the form of English verbs based on:
– the subject of the sentence
– time
– context of actions/events

Examples (variations based on time):
– I eat fried rice every day.
– I ate fried rice this morning.
– I will eat fried rice tomorrow.
– I am eating fried rice now.
– I have just eaten fried rice.
– I have been eating fried rice this whole week.

Examples (variations based on subject):
– I eat fried rice every day.
– He eats fried rice every day.
– She eats fried rice every day.
– My cat eats fried rice every day.
– You eat fried rice every day.
– We eat fried rice every day.
– They eat fried rice every day.

1.An action that will have happened or been completed in the future.
– The train will have left when you arrive at 9pm tonight.
– After this next race, I will have completed 10 marathons.

There are 5 verb forms:
– base form
– past simple form
– past participle form
– -ing form (present participle form)
– -s form

In Future Perfect, we use these forms:
– past participle

We DO NOT use these forms in Future Perfect:
– base forms
– -s forms
– past simple
– -ing forms

Positive Sentences

I + will have + past participle
-> I will have eaten breakfast.
You + will have + past participle
-> You will have eaten breakfast.
We + will have + past participle
-> We will have eaten breakfast.
They + will have + past participle
-> They will have eaten breakfast.

He + will have + past participle
-> He will have eaten breakfast.
She + will have + past participle
-> She will have eaten breakfast.
It + will have + past participle
-> My cat will have eaten breakfast.

Negative Sentences

I + will not have + past participle
-> I won’t have eaten breakfast.
You + will not have + past participle
-> You won’t have eaten breakfast.
We + will not have + past participle
-> We won’t have eaten breakfast.
They + will not have + past participle
-> They won’t have eaten breakfast.

He + will not have + past participle
-> He won’t have eaten breakfast.
She + will not have + past participle
-> She won’t have eaten breakfast.
It + will not have + past participle
-> My cat won’t have eaten breakfast.

Yes/No Questions

Will + I + Have + past participle
-> Will I have eaten breakfast?
Yes, you will. / No, you won’t.
Will + You + Have + past participle
-> Will you have eaten breakfast?
Yes, I will. / No, I won’t
Will + We + Have + past participle
-> Will we have eaten breakfast?
Yes, we will. / No, we won’t
Will + They + Have + past participle
-> Will they have eaten breakfast?
Yes, they will. / No, they won’t

Will + He + Have + past participle
-> Will he have eaten breakfast?
Yes, he will. / No, he won’t.
Will + She + Have + past participle
-> Will she have eaten breakfast?
Yes, she will. / No, she won’t
Will + It + Have + past participle
-> Will your cat have eaten breakfast?
Yes, it will. / No, it won’t

Questions with Question Words (QW)

QW + Will + I + Have + past participle
-> What will I have done?
QW + Will + You + Have + past participle
-> What will you have done?
QW + Will + We + Have + past participle
-> What will we have done?
QW + Will + They + Have + past participle
-> What will they have done?

QW + Will + He + Have + past participle
-> What will he have done?
QW + Will + She + Have + past participle
-> What will she have done?
QW + Will + It + Have + past participle
-> What will your cat have eaten?

1. Facts that will still be true at one point in the future. (descriptions, professions)
– I will have been a student of this university for 2 years next week.

2. Facts that will still be true at one point in the future. (characteristics, conditions, emotions, qualities)
– I will have been sick for a week tomorrow.

3. Facts that will still be true at one point in the future. (locations)
– They will have been outside for 2 hours in 5 minutes.

All professions are nouns:
– student
– teacher
– doctor
– father
– mother
– friends
– cousin
– etc.

Characteristics, conditions, emotions, qualities are described by adjectives:
– tall / short
– happy / sad fast / slow
– beautiful / ugly/ wonderful / terrible
– old / young / new / cheap / expensive
– kind / laid back / ambitious / passionate
– etc.

Locations are described by adverbs of place:
– here
– there
– home
– inside / outside
– upstairs / downstairs
– etc.

Positive Sentences

1. Subject + will have been + Noun
2. Subject + will have been + Adjective
3. Subject + will have been + Adverb of Place

I + will have been + Noun/Adj/Adv
-> I’ll have been a teacher.
You + will have been + Noun/Adj/Adv
-> You’ll have been brave.
We + will have been + Noun/Adj/Adv
-> We’ll have been here.
They + will have been + Noun/Adj/Adv
-> They’ll have been doctors.

He + will have been + Noun/Adj/Adv
-> He’ll have been a driver.
She + will have been + Noun/Adj/Adv
-> She’ll have been strong.
It + will have been + Noun/Adj/Adv
-> My cat will have been outside.

Negative Sentences

1. Subject + will not have been + Noun
2. Subject + will not have been + Adjective
3. Subject + will not have been + Adverb of Place

I + will not have been + Noun/Adj/Adv
-> I won’t have been a teacher.
You + will not have been + Noun/Adj/Adv
-> You won’t have been sick.
We + will not have been + Noun/Adj/Adv
-> We won’t have been there.
They + will not have been + Noun/Adj/Adv
-> They won’t have been doctors.

He + will not have been + Noun/Adj/Adv
-> He won’t have been a driver.
She + will not have been + Noun/Adj/Adv
-> She won’t have been late.
It + will not have been + Noun/Adj/Adv
-> My cat won’t have been outside.

Yes/No Questions

1. Will + Subject + have been + Noun
2. Will + Subject + have been + Adjective
3. Will + Subject + have been + of Place

Will + I + have been + Noun/Adj/Adv
-> Will I have been a teacher?
Will + You + have been + Noun/Adj/Adv
-> Will you have been sick?
Will + We + have been + Noun/Adj/Adv
-> Will we have been there?
Will + They + have been + Noun/Adj/Adv
-> Will they have been doctors?

Will + He + have been + Noun/Adj/Adv
-> Will he have been a driver?
Will + She + have been + Noun/Adj/Adv
-> Will she have been rude?
Will + It + have been + Noun/Adj/Adv
-> Will your cat have been outside?

Questions with Question Words (QW)

1. QW + Will + Subject + have been + Noun
2. QW + Will + Subject + have been + Adjective
3. QW + Will + Subject + have been + of Place

QW + Will + I + have been + Noun/Adj/Adv
-> How long will I have been a teacher next year?
QW + Will + You + have been + Noun/Adj/Adv
-> How long will you have been a teacher next year?
QW + Will + We + have been + Noun/Adj/Adv
-> How long will we have been teachers next year?
QW + Will + They + have been + Noun/Adj/Adv
-> How long will they have been teachers next year?

QW + Will + He + have been + Noun/Adj/Adv
-> How long will he have been sick tomorrow?
QW + Will + She + have been + Noun/Adj/Adv
-> How long will she have been sick tomorrow?
QW + Will + It + have been + Noun/Adj/Adv
-> How long will your cat have been sick tomorrow?