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 can't toboggan you can't toboggan he can't toboggan we can't toboggan you can't toboggan they can't toboggan	I can't be tobogganing you can't be tobogganing he can't be tobogganing we can't be tobogganing you can't be tobogganing they can't be tobogganing
Perfect	V-ing perfect
I can't have tobogganed you can't have tobogganed he can't have tobogganed we can't have tobogganed you can't have tobogganed they can't have tobogganed	I can't have been tobogganing you can't have been tobogganing he can't have been tobogganing we can't have been tobogganing you can't have been tobogganing they can't 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't I toboggan? can't you toboggan? can't he toboggan? can't we toboggan? can't you toboggan? can't they toboggan?	can't I be tobogganing? can't you be tobogganing? can't he be tobogganing? can't we be tobogganing? can't you be tobogganing? can't they be tobogganing?
Perfect	V-ing perfect
can't I have tobogganed? can't you have tobogganed? can't he have tobogganed? can't we have tobogganed? can't you have tobogganed? can't they have tobogganed?	can't I have been tobogganing? can't you have been tobogganing? can't he have been tobogganing? can't we have been tobogganing? can't you have been tobogganing? can't they have been tobogganing?