English verb conjugation
CAN CLANK

Regular verb: clank - clanked - clanked

Affirmation

Simple form	V-ing form
I can clank you can clank she can clank we can clank you can clank they can clank	I can be clanking you can be clanking she 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 she 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 she 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 she cannot clank we cannot clank you cannot clank they cannot clank	I cannot be clanking you cannot be clanking she 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 she 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 she 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 she clank? can we clank? can you clank? can they clank?	can I be clanking? can you be clanking? can she 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 she 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 she 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 she 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 she 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 she 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 she not have been clanking? can we not have been clanking? can you not have been clanking? can they not have been clanking?