English verb conjugation
CAN PLANE

Regular verb: plane - planed - planed

Affirmation

Simple form	V-ing form
I can plane you can plane he can plane we can plane you can plane they can plane	I can be planing you can be planing he can be planing we can be planing you can be planing they can be planing
Perfect	V-ing perfect
I can have planed you can have planed he can have planed we can have planed you can have planed they can have planed	I can have been planing you can have been planing he can have been planing we can have been planing you can have been planing they can have been planing

Negation

Simple form	V-ing form
I can't plane you can't plane he can't plane we can't plane you can't plane they can't plane	I can't be planing you can't be planing he can't be planing we can't be planing you can't be planing they can't be planing
Perfect	V-ing perfect
I can't have planed you can't have planed he can't have planed we can't have planed you can't have planed they can't have planed	I can't have been planing you can't have been planing he can't have been planing we can't have been planing you can't have been planing they can't have been planing

Interrogative form

Simple form	V-ing form
can I plane? can you plane? can he plane? can we plane? can you plane? can they plane?	can I be planing? can you be planing? can he be planing? can we be planing? can you be planing? can they be planing?
Perfect	V-ing perfect
can I have planed? can you have planed? can he have planed? can we have planed? can you have planed? can they have planed?	can I have been planing? can you have been planing? can he have been planing? can we have been planing? can you have been planing? can they have been planing?

Interro-negative form

Simple form	V-ing form
can't I plane? can't you plane? can't he plane? can't we plane? can't you plane? can't they plane?	can't I be planing? can't you be planing? can't he be planing? can't we be planing? can't you be planing? can't they be planing?
Perfect	V-ing perfect
can't I have planed? can't you have planed? can't he have planed? can't we have planed? can't you have planed? can't they have planed?	can't I have been planing? can't you have been planing? can't he have been planing? can't we have been planing? can't you have been planing? can't they have been planing?