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 cannot clank you cannot clank he cannot clank we cannot clank you cannot clank they cannot clank	I cannot be clanking you cannot be clanking he cannot be clanking we cannot be clanking you cannot be clanking they cannot be clanking
Perfect	V-ing perfect
I cannot have clanked you cannot have clanked he cannot have clanked we cannot have clanked you cannot have clanked they cannot have clanked	I cannot have been clanking you cannot have been clanking he cannot have been clanking we cannot have been clanking you cannot have been clanking they cannot 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 I not clank? can you not clank? can he not clank? can we not clank? can you not clank? can they not clank?	can I not be clanking? can you not be clanking? can he not be clanking? can we not be clanking? can you not be clanking? can they not be clanking?
Perfect	V-ing perfect
can I not have clanked? can you not have clanked? can he not have clanked? can we not have clanked? can you not have clanked? can they not have clanked?	can I not have been clanking? can you not have been clanking? can he not have been clanking? can we not have been clanking? can you not have been clanking? can they not have been clanking?