English verb conjugation
CAN AMASS

Regular verb: amass - amassed - amassed

Affirmation

Simple form	V-ing form
I can amass you can amass he can amass we can amass you can amass they can amass	I can be amassing you can be amassing he can be amassing we can be amassing you can be amassing they can be amassing
Perfect	V-ing perfect
I can have amassed you can have amassed he can have amassed we can have amassed you can have amassed they can have amassed	I can have been amassing you can have been amassing he can have been amassing we can have been amassing you can have been amassing they can have been amassing

Negation

Simple form	V-ing form
I can't amass you can't amass he can't amass we can't amass you can't amass they can't amass	I can't be amassing you can't be amassing he can't be amassing we can't be amassing you can't be amassing they can't be amassing
Perfect	V-ing perfect
I can't have amassed you can't have amassed he can't have amassed we can't have amassed you can't have amassed they can't have amassed	I can't have been amassing you can't have been amassing he 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	V-ing form
can I amass? can you amass? can he amass? can we amass? can you amass? can they amass?	can I be amassing? can you be amassing? can he be amassing? can we be amassing? can you be amassing? can they be amassing?
Perfect	V-ing perfect
can I have amassed? can you have amassed? can he have amassed? can we have amassed? can you have amassed? can they have amassed?	can I have been amassing? can you have been amassing? can he have been amassing? can we have been amassing? can you have been amassing? can they have been amassing?

Interro-negative form

Simple form	V-ing form
can't I amass? can't you amass? can't he amass? can't we amass? can't you amass? can't they amass?	can't I be amassing? can't you be amassing? can't he be amassing? can't we be amassing? can't you be amassing? can't they be amassing?
Perfect	V-ing perfect
can't I have amassed? can't you have amassed? can't he have amassed? can't we have amassed? can't you have amassed? can't they have amassed?	can't I have been amassing? can't you have been amassing? can't he have been amassing? can't we have been amassing? can't you have been amassing? can't they have been amassing?