I will/shall be extending. ... You/We/They will/shall have extended. Future Perfect Continuous Tense. He/She/It will/shall have been extending.

Will be continued which tense?

The future continuous tense, sometimes also referred to as the future progressive tense, is a verb tense that indicates that something will occur in the future and continue for an expected length of time. It is formed using the construction will + be + the present participle (the root verb + -ing).

Is present perfect tense?

The present perfect tense refers to an action or state that either occurred at an indefinite time in the past (e.g., we have talked before) or began in the past and continued to the present time (e.g., he has grown impatient over the last hour). This tense is formed by have/has + the past participle.