English verb conjugation
CAN SOUNDPROOF

Regular verb: soundproof - soundproofed - soundproofed

Affirmation

Simple form	V-ing form
I can soundproof you can soundproof he can soundproof we can soundproof you can soundproof they can soundproof	I can be soundproofing you can be soundproofing he can be soundproofing we can be soundproofing you can be soundproofing they can be soundproofing
Perfect	V-ing perfect
I can have soundproofed you can have soundproofed he can have soundproofed we can have soundproofed you can have soundproofed they can have soundproofed	I can have been soundproofing you can have been soundproofing he can have been soundproofing we can have been soundproofing you can have been soundproofing they can have been soundproofing

Negation

Simple form	V-ing form
I can't soundproof you can't soundproof he can't soundproof we can't soundproof you can't soundproof they can't soundproof	I can't be soundproofing you can't be soundproofing he can't be soundproofing we can't be soundproofing you can't be soundproofing they can't be soundproofing
Perfect	V-ing perfect
I can't have soundproofed you can't have soundproofed he can't have soundproofed we can't have soundproofed you can't have soundproofed they can't have soundproofed	I can't have been soundproofing you can't have been soundproofing he can't have been soundproofing we can't have been soundproofing you can't have been soundproofing they can't have been soundproofing

Interrogative form

Simple form	V-ing form
can I soundproof? can you soundproof? can he soundproof? can we soundproof? can you soundproof? can they soundproof?	can I be soundproofing? can you be soundproofing? can he be soundproofing? can we be soundproofing? can you be soundproofing? can they be soundproofing?
Perfect	V-ing perfect
can I have soundproofed? can you have soundproofed? can he have soundproofed? can we have soundproofed? can you have soundproofed? can they have soundproofed?	can I have been soundproofing? can you have been soundproofing? can he have been soundproofing? can we have been soundproofing? can you have been soundproofing? can they have been soundproofing?

Interro-negative form

Simple form	V-ing form
can't I soundproof? can't you soundproof? can't he soundproof? can't we soundproof? can't you soundproof? can't they soundproof?	can't I be soundproofing? can't you be soundproofing? can't he be soundproofing? can't we be soundproofing? can't you be soundproofing? can't they be soundproofing?
Perfect	V-ing perfect
can't I have soundproofed? can't you have soundproofed? can't he have soundproofed? can't we have soundproofed? can't you have soundproofed? can't they have soundproofed?	can't I have been soundproofing? can't you have been soundproofing? can't he have been soundproofing? can't we have been soundproofing? can't you have been soundproofing? can't they have been soundproofing?