I can amass you can amass she can amass we can amass you can amass they can amass
V-ing form
I can be amassing you can be amassing she can be amassing we can be amassing you can be amassing they can be amassing
Perfect
I can have amassed you can have amassed she can have amassed we can have amassed you can have amassed they can have amassed
V-ing perfect
I can have been amassing you can have been amassing she can have been amassing we can have been amassing you can have been amassing they can have been amassing
Negation
Simple form
I can't amass you can't amass she can't amass we can't amass you can't amass they can't amass
V-ing form
I can't be amassing you can't be amassing she can't be amassing we can't be amassing you can't be amassing they can't be amassing
Perfect
I can't have amassed you can't have amassed she can't have amassed we can't have amassed you can't have amassed they can't have amassed
V-ing perfect
I can't have been amassing you can't have been amassing she can't have been amassing we can't have been amassing you can't have been amassing they can't have been amassing
Interrogative form
Simple form
can I amass? can you amass? can she amass? can we amass? can you amass? can they amass?
V-ing form
can I be amassing? can you be amassing? can she be amassing? can we be amassing? can you be amassing? can they be amassing?
Perfect
can I have amassed? can you have amassed? can she have amassed? can we have amassed? can you have amassed? can they have amassed?
V-ing perfect
can I have been amassing? can you have been amassing? can she have been amassing? can we have been amassing? can you have been amassing? can they have been amassing?
Interro-negative form
Simple form
can't I amass? can't you amass? can't she amass? can't we amass? can't you amass? can't they amass?
V-ing form
can't I be amassing? can't you be amassing? can't she be amassing? can't we be amassing? can't you be amassing? can't they be amassing?
Perfect
can't I have amassed? can't you have amassed? can't she have amassed? can't we have amassed? can't you have amassed? can't they have amassed?
V-ing perfect
can't I have been amassing? can't you have been amassing? can't she have been amassing? can't we have been amassing? can't you have been amassing? can't they have been amassing?