19 Future Perfect Continuous
We use Future Perfect Continuous Tense to talk about a continuous action that will be completed at some point in the future. It is often used with time expressions.
Affirmative form
In Affirmative form it has this structure:
Subject + will+ (have) + been + present continuous.
| SUBJECT | AUXILIARY VERB | AUXILIARY VERB | BE V3 | PRESENT PARTICIPLE |
| I/You/He/She/It/We/They | will | have | been | walking |
Negative form
In Negative form it has this structure:
Subject + will not + auxiliary verb (have) + been + present continuous.
| SUBJECT | AUXILIARY VERB (w/ NEGATION) |
AUXILIARY VERB | BE V3 | PRESENT PARTICIPLE |
| I/You/He/She/It/We/They | will not* |
have | been | walking |
*Short version of the negative form is: “won’t“
Interrogative form
The Interrogative structure has this form:
Will + Subject + have + been + present continuous + (?).
| VERB | SUBJECT | AUXILIARY VERB | BE V3 | PRESENT PARTICIPLE | QUESTION MARK |
| Will | I/You/He/She/It/We/They | have | been | walking | …? |
- I won’t have been investing in architecture by the end of 2020.
- The company will have been trading for 2 weeks after the new staff manager.
- They will have been negotiating for 3 years in summer.
- The company won’t have been trading for 2 weeks after the new staff manager.
- Will the company have been trading for 2 weeks after the new staff manager?
Future Perfect Continuous Tense is used to talk about a continuous action that will be completed at some point in the future.
Time durations such as for two minutes, for 5 years, since Saturday can be used with Future Perfect Continuous.
This tense can be used to show cause and effect. Future Perfect Continuous can be used before another action.