English verb conjugation
CAN PLANT

Regular verb: plant - planted - planted

Affirmation

Simple form	V-ing form
I can plant you can plant she can plant we can plant you can plant they can plant	I can be planting you can be planting she can be planting we can be planting you can be planting they can be planting
Perfect	V-ing perfect
I can have planted you can have planted she can have planted we can have planted you can have planted they can have planted	I can have been planting you can have been planting she can have been planting we can have been planting you can have been planting they can have been planting

Negation

Simple form	V-ing form
I cannot plant you cannot plant she cannot plant we cannot plant you cannot plant they cannot plant	I cannot be planting you cannot be planting she cannot be planting we cannot be planting you cannot be planting they cannot be planting
Perfect	V-ing perfect
I cannot have planted you cannot have planted she cannot have planted we cannot have planted you cannot have planted they cannot have planted	I cannot have been planting you cannot have been planting she cannot have been planting we cannot have been planting you cannot have been planting they cannot have been planting

Interrogative form

Simple form	V-ing form
can I plant? can you plant? can she plant? can we plant? can you plant? can they plant?	can I be planting? can you be planting? can she be planting? can we be planting? can you be planting? can they be planting?
Perfect	V-ing perfect
can I have planted? can you have planted? can she have planted? can we have planted? can you have planted? can they have planted?	can I have been planting? can you have been planting? can she have been planting? can we have been planting? can you have been planting? can they have been planting?

Interro-negative form

Simple form	V-ing form
can I not plant? can you not plant? can she not plant? can we not plant? can you not plant? can they not plant?	can I not be planting? can you not be planting? can she not be planting? can we not be planting? can you not be planting? can they not be planting?
Perfect	V-ing perfect
can I not have planted? can you not have planted? can she not have planted? can we not have planted? can you not have planted? can they not have planted?	can I not have been planting? can you not have been planting? can she not have been planting? can we not have been planting? can you not have been planting? can they not have been planting?