English verb conjugation
CAN TIPTOE

Regular verb: tiptoe - tiptoed - tiptoed

Affirmation

Simple form	V-ing form
I can tiptoe you can tiptoe he can tiptoe we can tiptoe you can tiptoe they can tiptoe	I can be tiptoing you can be tiptoing he can be tiptoing we can be tiptoing you can be tiptoing they can be tiptoing
Perfect	V-ing perfect
I can have tiptoed you can have tiptoed he can have tiptoed we can have tiptoed you can have tiptoed they can have tiptoed	I can have been tiptoing you can have been tiptoing he can have been tiptoing we can have been tiptoing you can have been tiptoing they can have been tiptoing

Negation

Simple form	V-ing form
I can't tiptoe you can't tiptoe he can't tiptoe we can't tiptoe you can't tiptoe they can't tiptoe	I can't be tiptoing you can't be tiptoing he can't be tiptoing we can't be tiptoing you can't be tiptoing they can't be tiptoing
Perfect	V-ing perfect
I can't have tiptoed you can't have tiptoed he can't have tiptoed we can't have tiptoed you can't have tiptoed they can't have tiptoed	I can't have been tiptoing you can't have been tiptoing he can't have been tiptoing we can't have been tiptoing you can't have been tiptoing they can't have been tiptoing

Interrogative form

Simple form	V-ing form
can I tiptoe? can you tiptoe? can he tiptoe? can we tiptoe? can you tiptoe? can they tiptoe?	can I be tiptoing? can you be tiptoing? can he be tiptoing? can we be tiptoing? can you be tiptoing? can they be tiptoing?
Perfect	V-ing perfect
can I have tiptoed? can you have tiptoed? can he have tiptoed? can we have tiptoed? can you have tiptoed? can they have tiptoed?	can I have been tiptoing? can you have been tiptoing? can he have been tiptoing? can we have been tiptoing? can you have been tiptoing? can they have been tiptoing?

Interro-negative form

Simple form	V-ing form
can't I tiptoe? can't you tiptoe? can't he tiptoe? can't we tiptoe? can't you tiptoe? can't they tiptoe?	can't I be tiptoing? can't you be tiptoing? can't he be tiptoing? can't we be tiptoing? can't you be tiptoing? can't they be tiptoing?
Perfect	V-ing perfect
can't I have tiptoed? can't you have tiptoed? can't he have tiptoed? can't we have tiptoed? can't you have tiptoed? can't they have tiptoed?	can't I have been tiptoing? can't you have been tiptoing? can't he have been tiptoing? can't we have been tiptoing? can't you have been tiptoing? can't they have been tiptoing?