FUTURE TENSE 1) SIMPLE FUTURE TENSE:
Meaning: It indicates an action or event which is to be take place in future.
Here formula for future tense is as follows:
SUBJECT+HELPING VERB+VERB1+OBJECT

Here helping verbs are ‘SHALL’ followed with ‘I’ or ‘WE’ and ‘WILL’ followed with ‘THEY’ ,‘HE’ ,‘SHE’ ,‘YOU’ ,’IT’.
E.g.: I shall buy a car tomorrow. In the above example, helping verb is ‘shall’ followed with ‘I’. To make it interrogative, the formula is as follows:
HELPING VERB+SUBJECT+VERB1+OBJECT+? To make it negative, the formula is as follows:
SUBJECT+HELPING VERB+’NOT’+VERB1+OBJECT * He will deactivate his bank account tomorrow.
(N) He will not deactivate his bank account tomorrow.
(I) Will he deactivate his bank account tomorrow?

2) FUTURE CONTINUOUS TENSE:
Meaning: It is used to indicate an action which will be going on in future at certain time.
Here formula for future tense is as follows:
SUBJECT+HELPING VERB+VERB+ING+OBJECT

Here helping verbs are ‘SHALL’ and ‘WILL’.
E.g.: They will be enjoying new year eve this 31st December. In the above example, helping verb is ‘I’. To make it interrogative, the formula is as follows:
HELPING VERB+SUBJECT+VERB1+OBJECT+? To make it negative, the formula is as follows:
SUBJECT+HELPING VERB+’NOT’+VERB1+OBJECT * He will be doing exercise in morning.
(N) He will not be doing exercise in morning.
(I) Will he be doing exercise in morning?

3) FUTURE PERFECT TENSE:
Meaning: It indicates an action which will be completed before a certain point of time in future.
Here formula for future tense is as follows:
SUBJECT+HELPING VERB+HAVE+VERB3+OBJECT

Here helping verbs is ‘WILL’.
E.g.: I will have completed my task by end of the day. In the above example, helping verb is ‘will’. To make it interrogative, the formula is as follows:
HELPING VERB+SUBJECT+VERB+OBJECT+? To make it negative, the formula is as follows:
SUBJECT+HELPING VERB+’NOT’+VERB+OBJECT * They will have done their performance by next morning.
(N) They will not have done their performance by next morning.
(I) Will they have done their performance by next morning?

4) FUTURE PERFECT CONTINUOUS TENSE:
Meaning: It indicates an action which will start in future at some time & it will continue up to next point of time in future.
Here formula for future tense is as follows:
SUBJECT+HELPING VERB+HAVE+BEEN+VERB+ING+OBJECT

Here helping verbs is ‘WILL’.
E.g.: The students will have been writing exams since evening tomorrow. In the above example, helping verb is ‘will’ To make it interrogative, the formula is as follows:
HELPING VERB+SUBJECT+HAVE+BEEN+VERB+ING+OBJECT+? To make it negative, the formula is as follows:
SUBJECT+HELPING VERB+HAVE+NOT+BEEN+VERB+ING+OBJECT * The participants of marathon will have been running on their path since morning.
(N) The participants of marathon will have not been running on their path since morning.
(I) Will the participants of marathon been running on their path since morning?