I'll be concerning you'll be concerning she'll be concerning we'll be concerning you'll be concerning they'll be concerning
Perfect
I'll have concerned you'll have concerned she'll have concerned we'll have concerned you'll have concerned they'll have concerned
V-ing perfect
I'll have been concerning you'll have been concerning she'll have been concerning we'll have been concerning you'll have been concerning they'll have been concerning
Negation
Simple form
I shan't concern you shan't concern she shan't concern we shan't concern you shan't concern they shan't concern
V-ing form
I shan't be concerning you shan't be concerning she shan't be concerning we shan't be concerning you shan't be concerning they shan't be concerning
Perfect
I shan't have concerned you shan't have concerned she shan't have concerned we shan't have concerned you shan't have concerned they shan't have concerned
V-ing perfect
I shan't have been concerning you shan't have been concerning she shan't have been concerning we shan't have been concerning you shan't have been concerning they shan't have been concerning
Interrogative form
Simple form
shall I concern? shall you concern? shall she concern? shall we concern? shall you concern? shall they concern?
V-ing form
shall I be concerning? shall you be concerning? shall she be concerning? shall we be concerning? shall you be concerning? shall they be concerning?
Perfect
shall I have concerned? shall you have concerned? shall she have concerned? shall we have concerned? shall you have concerned? shall they have concerned?
V-ing perfect
shall I have been concerning? shall you have been concerning? shall she have been concerning? shall we have been concerning? shall you have been concerning? shall they have been concerning?
Interro-negative form
Simple form
shan't I concern? shan't you concern? shan't she concern? shan't we concern? shan't you concern? shan't they concern?
V-ing form
shan't I be concerning? shan't you be concerning? shan't she be concerning? shan't we be concerning? shan't you be concerning? shan't they be concerning?
Perfect
shan't I have concerned? shan't you have concerned? shan't she have concerned? shan't we have concerned? shan't you have concerned? shan't they have concerned?
V-ing perfect
shan't I have been concerning? shan't you have been concerning? shan't she have been concerning? shan't we have been concerning? shan't you have been concerning? shan't they have been concerning?