English verb conjugation
CAN HARVEST

Regular verb: harvest - harvested - harvested

Affirmation

Simple form	V-ing form
I can harvest you can harvest he can harvest we can harvest you can harvest they can harvest	I can be harvesting you can be harvesting he can be harvesting we can be harvesting you can be harvesting they can be harvesting
Perfect	V-ing perfect
I can have harvested you can have harvested he can have harvested we can have harvested you can have harvested they can have harvested	I can have been harvesting you can have been harvesting he can have been harvesting we can have been harvesting you can have been harvesting they can have been harvesting

Negation

Simple form	V-ing form
I can't harvest you can't harvest he can't harvest we can't harvest you can't harvest they can't harvest	I can't be harvesting you can't be harvesting he can't be harvesting we can't be harvesting you can't be harvesting they can't be harvesting
Perfect	V-ing perfect
I can't have harvested you can't have harvested he can't have harvested we can't have harvested you can't have harvested they can't have harvested	I can't have been harvesting you can't have been harvesting he can't have been harvesting we can't have been harvesting you can't have been harvesting they can't have been harvesting

Interrogative form

Simple form	V-ing form
can I harvest? can you harvest? can he harvest? can we harvest? can you harvest? can they harvest?	can I be harvesting? can you be harvesting? can he be harvesting? can we be harvesting? can you be harvesting? can they be harvesting?
Perfect	V-ing perfect
can I have harvested? can you have harvested? can he have harvested? can we have harvested? can you have harvested? can they have harvested?	can I have been harvesting? can you have been harvesting? can he have been harvesting? can we have been harvesting? can you have been harvesting? can they have been harvesting?

Interro-negative form

Simple form	V-ing form
can't I harvest? can't you harvest? can't he harvest? can't we harvest? can't you harvest? can't they harvest?	can't I be harvesting? can't you be harvesting? can't he be harvesting? can't we be harvesting? can't you be harvesting? can't they be harvesting?
Perfect	V-ing perfect
can't I have harvested? can't you have harvested? can't he have harvested? can't we have harvested? can't you have harvested? can't they have harvested?	can't I have been harvesting? can't you have been harvesting? can't he have been harvesting? can't we have been harvesting? can't you have been harvesting? can't they have been harvesting?