English verb conjugation
CAN TIE

Regular verb: tie - tied - tied

Affirmation

Simple form	V-ing form
I can tie you can tie she can tie we can tie you can tie they can tie	I can be tying you can be tying she can be tying we can be tying you can be tying they can be tying
Perfect	V-ing perfect
I can have tied you can have tied she can have tied we can have tied you can have tied they can have tied	I can have been tying you can have been tying she can have been tying we can have been tying you can have been tying they can have been tying

Negation

Simple form	V-ing form
I cannot tie you cannot tie she cannot tie we cannot tie you cannot tie they cannot tie	I cannot be tying you cannot be tying she cannot be tying we cannot be tying you cannot be tying they cannot be tying
Perfect	V-ing perfect
I cannot have tied you cannot have tied she cannot have tied we cannot have tied you cannot have tied they cannot have tied	I cannot have been tying you cannot have been tying she cannot have been tying we cannot have been tying you cannot have been tying they cannot have been tying

Interrogative form

Simple form	V-ing form
can I tie? can you tie? can she tie? can we tie? can you tie? can they tie?	can I be tying? can you be tying? can she be tying? can we be tying? can you be tying? can they be tying?
Perfect	V-ing perfect
can I have tied? can you have tied? can she have tied? can we have tied? can you have tied? can they have tied?	can I have been tying? can you have been tying? can she have been tying? can we have been tying? can you have been tying? can they have been tying?

Interro-negative form

Simple form	V-ing form
can I not tie? can you not tie? can she not tie? can we not tie? can you not tie? can they not tie?	can I not be tying? can you not be tying? can she not be tying? can we not be tying? can you not be tying? can they not be tying?
Perfect	V-ing perfect
can I not have tied? can you not have tied? can she not have tied? can we not have tied? can you not have tied? can they not have tied?	can I not have been tying? can you not have been tying? can she not have been tying? can we not have been tying? can you not have been tying? can they not have been tying?