English verb conjugation
CAN YELLOW

Regular verb: yellow - yellowed - yellowed

Affirmation

Simple form	V-ing form
I can yellow you can yellow he can yellow we can yellow you can yellow they can yellow	I can be yellowing you can be yellowing he can be yellowing we can be yellowing you can be yellowing they can be yellowing
Perfect	V-ing perfect
I can have yellowed you can have yellowed he can have yellowed we can have yellowed you can have yellowed they can have yellowed	I can have been yellowing you can have been yellowing he can have been yellowing we can have been yellowing you can have been yellowing they can have been yellowing

Negation

Simple form	V-ing form
I can't yellow you can't yellow he can't yellow we can't yellow you can't yellow they can't yellow	I can't be yellowing you can't be yellowing he can't be yellowing we can't be yellowing you can't be yellowing they can't be yellowing
Perfect	V-ing perfect
I can't have yellowed you can't have yellowed he can't have yellowed we can't have yellowed you can't have yellowed they can't have yellowed	I can't have been yellowing you can't have been yellowing he can't have been yellowing we can't have been yellowing you can't have been yellowing they can't have been yellowing

Interrogative form

Simple form	V-ing form
can I yellow? can you yellow? can he yellow? can we yellow? can you yellow? can they yellow?	can I be yellowing? can you be yellowing? can he be yellowing? can we be yellowing? can you be yellowing? can they be yellowing?
Perfect	V-ing perfect
can I have yellowed? can you have yellowed? can he have yellowed? can we have yellowed? can you have yellowed? can they have yellowed?	can I have been yellowing? can you have been yellowing? can he have been yellowing? can we have been yellowing? can you have been yellowing? can they have been yellowing?

Interro-negative form

Simple form	V-ing form
can't I yellow? can't you yellow? can't he yellow? can't we yellow? can't you yellow? can't they yellow?	can't I be yellowing? can't you be yellowing? can't he be yellowing? can't we be yellowing? can't you be yellowing? can't they be yellowing?
Perfect	V-ing perfect
can't I have yellowed? can't you have yellowed? can't he have yellowed? can't we have yellowed? can't you have yellowed? can't they have yellowed?	can't I have been yellowing? can't you have been yellowing? can't he have been yellowing? can't we have been yellowing? can't you have been yellowing? can't they have been yellowing?