English verb conjugation
CAN SOUND

Regular verb: sound - sounded - sounded

Affirmation

Simple form	V-ing form
I can sound you can sound he can sound we can sound you can sound they can sound	I can be sounding you can be sounding he can be sounding we can be sounding you can be sounding they can be sounding
Perfect	V-ing perfect
I can have sounded you can have sounded he can have sounded we can have sounded you can have sounded they can have sounded	I can have been sounding you can have been sounding he can have been sounding we can have been sounding you can have been sounding they can have been sounding

Negation

Simple form	V-ing form
I can't sound you can't sound he can't sound we can't sound you can't sound they can't sound	I can't be sounding you can't be sounding he can't be sounding we can't be sounding you can't be sounding they can't be sounding
Perfect	V-ing perfect
I can't have sounded you can't have sounded he can't have sounded we can't have sounded you can't have sounded they can't have sounded	I can't have been sounding you can't have been sounding he can't have been sounding we can't have been sounding you can't have been sounding they can't have been sounding

Interrogative form

Simple form	V-ing form
can I sound? can you sound? can he sound? can we sound? can you sound? can they sound?	can I be sounding? can you be sounding? can he be sounding? can we be sounding? can you be sounding? can they be sounding?
Perfect	V-ing perfect
can I have sounded? can you have sounded? can he have sounded? can we have sounded? can you have sounded? can they have sounded?	can I have been sounding? can you have been sounding? can he have been sounding? can we have been sounding? can you have been sounding? can they have been sounding?

Interro-negative form

Simple form	V-ing form
can't I sound? can't you sound? can't he sound? can't we sound? can't you sound? can't they sound?	can't I be sounding? can't you be sounding? can't he be sounding? can't we be sounding? can't you be sounding? can't they be sounding?
Perfect	V-ing perfect
can't I have sounded? can't you have sounded? can't he have sounded? can't we have sounded? can't you have sounded? can't they have sounded?	can't I have been sounding? can't you have been sounding? can't he have been sounding? can't we have been sounding? can't you have been sounding? can't they have been sounding?