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 cannot plane you cannot plane he cannot plane we cannot plane you cannot plane they cannot plane	I cannot be planing you cannot be planing he cannot be planing we cannot be planing you cannot be planing they cannot be planing
Perfect	V-ing perfect
I cannot have planed you cannot have planed he cannot have planed we cannot have planed you cannot have planed they cannot have planed	I cannot have been planing you cannot have been planing he cannot have been planing we cannot have been planing you cannot have been planing they cannot 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 I not plane? can you not plane? can he not plane? can we not plane? can you not plane? can they not plane?	can I not be planing? can you not be planing? can he not be planing? can we not be planing? can you not be planing? can they not be planing?
Perfect	V-ing perfect
can I not have planed? can you not have planed? can he not have planed? can we not have planed? can you not have planed? can they not have planed?	can I not have been planing? can you not have been planing? can he not have been planing? can we not have been planing? can you not have been planing? can they not have been planing?