English verb conjugation
CAN TOBOGGAN

Regular verb: toboggan - tobogganed - tobogganed

Affirmation

Simple form	V-ing form
I can toboggan you can toboggan he can toboggan we can toboggan you can toboggan they can toboggan	I can be tobogganing you can be tobogganing he can be tobogganing we can be tobogganing you can be tobogganing they can be tobogganing
Perfect	V-ing perfect
I can have tobogganed you can have tobogganed he can have tobogganed we can have tobogganed you can have tobogganed they can have tobogganed	I can have been tobogganing you can have been tobogganing he can have been tobogganing we can have been tobogganing you can have been tobogganing they can have been tobogganing

Negation

Simple form	V-ing form
I cannot toboggan you cannot toboggan he cannot toboggan we cannot toboggan you cannot toboggan they cannot toboggan	I cannot be tobogganing you cannot be tobogganing he cannot be tobogganing we cannot be tobogganing you cannot be tobogganing they cannot be tobogganing
Perfect	V-ing perfect
I cannot have tobogganed you cannot have tobogganed he cannot have tobogganed we cannot have tobogganed you cannot have tobogganed they cannot have tobogganed	I cannot have been tobogganing you cannot have been tobogganing he cannot have been tobogganing we cannot have been tobogganing you cannot have been tobogganing they cannot have been tobogganing

Interrogative form

Simple form	V-ing form
can I toboggan? can you toboggan? can he toboggan? can we toboggan? can you toboggan? can they toboggan?	can I be tobogganing? can you be tobogganing? can he be tobogganing? can we be tobogganing? can you be tobogganing? can they be tobogganing?
Perfect	V-ing perfect
can I have tobogganed? can you have tobogganed? can he have tobogganed? can we have tobogganed? can you have tobogganed? can they have tobogganed?	can I have been tobogganing? can you have been tobogganing? can he have been tobogganing? can we have been tobogganing? can you have been tobogganing? can they have been tobogganing?

Interro-negative form

Simple form	V-ing form
can I not toboggan? can you not toboggan? can he not toboggan? can we not toboggan? can you not toboggan? can they not toboggan?	can I not be tobogganing? can you not be tobogganing? can he not be tobogganing? can we not be tobogganing? can you not be tobogganing? can they not be tobogganing?
Perfect	V-ing perfect
can I not have tobogganed? can you not have tobogganed? can he not have tobogganed? can we not have tobogganed? can you not have tobogganed? can they not have tobogganed?	can I not have been tobogganing? can you not have been tobogganing? can he not have been tobogganing? can we not have been tobogganing? can you not have been tobogganing? can they not have been tobogganing?