English verb conjugation
CAN PLONK

Regular verb: plonk - plonked - plonked

Affirmation

Simple form	V-ing form
I can plonk you can plonk he can plonk we can plonk you can plonk they can plonk	I can be plonking you can be plonking he can be plonking we can be plonking you can be plonking they can be plonking
Perfect	V-ing perfect
I can have plonked you can have plonked he can have plonked we can have plonked you can have plonked they can have plonked	I can have been plonking you can have been plonking he can have been plonking we can have been plonking you can have been plonking they can have been plonking

Negation

Simple form	V-ing form
I cannot plonk you cannot plonk he cannot plonk we cannot plonk you cannot plonk they cannot plonk	I cannot be plonking you cannot be plonking he cannot be plonking we cannot be plonking you cannot be plonking they cannot be plonking
Perfect	V-ing perfect
I cannot have plonked you cannot have plonked he cannot have plonked we cannot have plonked you cannot have plonked they cannot have plonked	I cannot have been plonking you cannot have been plonking he cannot have been plonking we cannot have been plonking you cannot have been plonking they cannot have been plonking

Interrogative form

Simple form	V-ing form
can I plonk? can you plonk? can he plonk? can we plonk? can you plonk? can they plonk?	can I be plonking? can you be plonking? can he be plonking? can we be plonking? can you be plonking? can they be plonking?
Perfect	V-ing perfect
can I have plonked? can you have plonked? can he have plonked? can we have plonked? can you have plonked? can they have plonked?	can I have been plonking? can you have been plonking? can he have been plonking? can we have been plonking? can you have been plonking? can they have been plonking?

Interro-negative form

Simple form	V-ing form
can I not plonk? can you not plonk? can he not plonk? can we not plonk? can you not plonk? can they not plonk?	can I not be plonking? can you not be plonking? can he not be plonking? can we not be plonking? can you not be plonking? can they not be plonking?
Perfect	V-ing perfect
can I not have plonked? can you not have plonked? can he not have plonked? can we not have plonked? can you not have plonked? can they not have plonked?	can I not have been plonking? can you not have been plonking? can he not have been plonking? can we not have been plonking? can you not have been plonking? can they not have been plonking?