I'll be understanding you'll be understanding he'll be understanding we'll be understanding you'll be understanding they'll be understanding
Perfect
I'll have understood you'll have understood he'll have understood we'll have understood you'll have understood they'll have understood
V-ing perfect
I'll have been understanding you'll have been understanding he'll have been understanding we'll have been understanding you'll have been understanding they'll have been understanding
Negation
Simple form
I won't understand you won't understand he won't understand we won't understand you won't understand they won't understand
V-ing form
I won't be understanding you won't be understanding he won't be understanding we won't be understanding you won't be understanding they won't be understanding
Perfect
I won't have understood you won't have understood he won't have understood we won't have understood you won't have understood they won't have understood
V-ing perfect
I won't have been understanding you won't have been understanding he won't have been understanding we won't have been understanding you won't have been understanding they won't have been understanding
Interrogative form
Simple form
will I understand? will you understand? will he understand? will we understand? will you understand? will they understand?
V-ing form
will I be understanding? will you be understanding? will he be understanding? will we be understanding? will you be understanding? will they be understanding?
Perfect
will I have understood? will you have understood? will he have understood? will we have understood? will you have understood? will they have understood?
V-ing perfect
will I have been understanding? will you have been understanding? will he have been understanding? will we have been understanding? will you have been understanding? will they have been understanding?
Interro-negative form
Simple form
won't I understand? won't you understand? won't he understand? won't we understand? won't you understand? won't they understand?
V-ing form
won't I be understanding? won't you be understanding? won't he be understanding? won't we be understanding? won't you be understanding? won't they be understanding?
Perfect
won't I have understood? won't you have understood? won't he have understood? won't we have understood? won't you have understood? won't they have understood?
V-ing perfect
won't I have been understanding? won't you have been understanding? won't he have been understanding? won't we have been understanding? won't you have been understanding? won't they have been understanding?