English verb conjugation
CAN CLANK

Regular verb: clank - clanked - clanked

Affirmation

Simple form	V-ing form
I can clank you can clank he can clank we can clank you can clank they can clank	I can be clanking you can be clanking he can be clanking we can be clanking you can be clanking they can be clanking
Perfect	V-ing perfect
I can have clanked you can have clanked he can have clanked we can have clanked you can have clanked they can have clanked	I can have been clanking you can have been clanking he can have been clanking we can have been clanking you can have been clanking they can have been clanking

Negation

Simple form	V-ing form
I can't clank you can't clank he can't clank we can't clank you can't clank they can't clank	I can't be clanking you can't be clanking he can't be clanking we can't be clanking you can't be clanking they can't be clanking
Perfect	V-ing perfect
I can't have clanked you can't have clanked he can't have clanked we can't have clanked you can't have clanked they can't have clanked	I can't have been clanking you can't have been clanking he can't have been clanking we can't have been clanking you can't have been clanking they can't have been clanking

Interrogative form

Simple form	V-ing form
can I clank? can you clank? can he clank? can we clank? can you clank? can they clank?	can I be clanking? can you be clanking? can he be clanking? can we be clanking? can you be clanking? can they be clanking?
Perfect	V-ing perfect
can I have clanked? can you have clanked? can he have clanked? can we have clanked? can you have clanked? can they have clanked?	can I have been clanking? can you have been clanking? can he have been clanking? can we have been clanking? can you have been clanking? can they have been clanking?

Interro-negative form

Simple form	V-ing form
can't I clank? can't you clank? can't he clank? can't we clank? can't you clank? can't they clank?	can't I be clanking? can't you be clanking? can't he be clanking? can't we be clanking? can't you be clanking? can't they be clanking?
Perfect	V-ing perfect
can't I have clanked? can't you have clanked? can't he have clanked? can't we have clanked? can't you have clanked? can't they have clanked?	can't I have been clanking? can't you have been clanking? can't he have been clanking? can't we have been clanking? can't you have been clanking? can't they have been clanking?