English verb conjugation
CAN CURTSY

Regular verb: curtsy - curtsied - curtsied

Affirmation

Simple form	V-ing form
I can curtsy you can curtsy he can curtsy we can curtsy you can curtsy they can curtsy	I can be curtsying you can be curtsying he can be curtsying we can be curtsying you can be curtsying they can be curtsying
Perfect	V-ing perfect
I can have curtsied you can have curtsied he can have curtsied we can have curtsied you can have curtsied they can have curtsied	I can have been curtsying you can have been curtsying he can have been curtsying we can have been curtsying you can have been curtsying they can have been curtsying

Negation

Simple form	V-ing form
I can't curtsy you can't curtsy he can't curtsy we can't curtsy you can't curtsy they can't curtsy	I can't be curtsying you can't be curtsying he can't be curtsying we can't be curtsying you can't be curtsying they can't be curtsying
Perfect	V-ing perfect
I can't have curtsied you can't have curtsied he can't have curtsied we can't have curtsied you can't have curtsied they can't have curtsied	I can't have been curtsying you can't have been curtsying he can't have been curtsying we can't have been curtsying you can't have been curtsying they can't have been curtsying

Interrogative form

Simple form	V-ing form
can I curtsy? can you curtsy? can he curtsy? can we curtsy? can you curtsy? can they curtsy?	can I be curtsying? can you be curtsying? can he be curtsying? can we be curtsying? can you be curtsying? can they be curtsying?
Perfect	V-ing perfect
can I have curtsied? can you have curtsied? can he have curtsied? can we have curtsied? can you have curtsied? can they have curtsied?	can I have been curtsying? can you have been curtsying? can he have been curtsying? can we have been curtsying? can you have been curtsying? can they have been curtsying?

Interro-negative form

Simple form	V-ing form
can't I curtsy? can't you curtsy? can't he curtsy? can't we curtsy? can't you curtsy? can't they curtsy?	can't I be curtsying? can't you be curtsying? can't he be curtsying? can't we be curtsying? can't you be curtsying? can't they be curtsying?
Perfect	V-ing perfect
can't I have curtsied? can't you have curtsied? can't he have curtsied? can't we have curtsied? can't you have curtsied? can't they have curtsied?	can't I have been curtsying? can't you have been curtsying? can't he have been curtsying? can't we have been curtsying? can't you have been curtsying? can't they have been curtsying?