I'll be grabbing you'll be grabbing he'll be grabbing we'll be grabbing you'll be grabbing they'll be grabbing
Perfect
I'll have grabbed you'll have grabbed he'll have grabbed we'll have grabbed you'll have grabbed they'll have grabbed
V-ing perfect
I'll have been grabbing you'll have been grabbing he'll have been grabbing we'll have been grabbing you'll have been grabbing they'll have been grabbing
Negation
Simple form
I shan't grab you shan't grab he shan't grab we shan't grab you shan't grab they shan't grab
V-ing form
I shan't be grabbing you shan't be grabbing he shan't be grabbing we shan't be grabbing you shan't be grabbing they shan't be grabbing
Perfect
I shan't have grabbed you shan't have grabbed he shan't have grabbed we shan't have grabbed you shan't have grabbed they shan't have grabbed
V-ing perfect
I shan't have been grabbing you shan't have been grabbing he shan't have been grabbing we shan't have been grabbing you shan't have been grabbing they shan't have been grabbing
Interrogative form
Simple form
shall I grab? shall you grab? shall he grab? shall we grab? shall you grab? shall they grab?
V-ing form
shall I be grabbing? shall you be grabbing? shall he be grabbing? shall we be grabbing? shall you be grabbing? shall they be grabbing?
Perfect
shall I have grabbed? shall you have grabbed? shall he have grabbed? shall we have grabbed? shall you have grabbed? shall they have grabbed?
V-ing perfect
shall I have been grabbing? shall you have been grabbing? shall he have been grabbing? shall we have been grabbing? shall you have been grabbing? shall they have been grabbing?
Interro-negative form
Simple form
shan't I grab? shan't you grab? shan't he grab? shan't we grab? shan't you grab? shan't they grab?
V-ing form
shan't I be grabbing? shan't you be grabbing? shan't he be grabbing? shan't we be grabbing? shan't you be grabbing? shan't they be grabbing?
Perfect
shan't I have grabbed? shan't you have grabbed? shan't he have grabbed? shan't we have grabbed? shan't you have grabbed? shan't they have grabbed?
V-ing perfect
shan't I have been grabbing? shan't you have been grabbing? shan't he have been grabbing? shan't we have been grabbing? shan't you have been grabbing? shan't they have been grabbing?