I may yellow you may yellow he may yellow we may yellow you may yellow they may yellow
V-ing form
I may be yellowing you may be yellowing he may be yellowing we may be yellowing you may be yellowing they may be yellowing
Perfect
I may have yellowed you may have yellowed he may have yellowed we may have yellowed you may have yellowed they may have yellowed
V-ing perfect
I may have been yellowing you may have been yellowing he may have been yellowing we may have been yellowing you may have been yellowing they may have been yellowing
Negation
Simple form
I may not yellow you may not yellow he may not yellow we may not yellow you may not yellow they may not yellow
V-ing form
I may not be yellowing you may not be yellowing he may not be yellowing we may not be yellowing you may not be yellowing they may not be yellowing
Perfect
I may not have yellowed you may not have yellowed he may not have yellowed we may not have yellowed you may not have yellowed they may not have yellowed
V-ing perfect
I may not have been yellowing you may not have been yellowing he may not have been yellowing we may not have been yellowing you may not have been yellowing they may not have been yellowing
Interrogative form
Simple form
may I yellow? may you yellow? may he yellow? may we yellow? may you yellow? may they yellow?
V-ing form
may I be yellowing? may you be yellowing? may he be yellowing? may we be yellowing? may you be yellowing? may they be yellowing?
Perfect
may I have yellowed? may you have yellowed? may he have yellowed? may we have yellowed? may you have yellowed? may they have yellowed?
V-ing perfect
may I have been yellowing? may you have been yellowing? may he have been yellowing? may we have been yellowing? may you have been yellowing? may they have been yellowing?
Interro-negative form
Simple form
may I not yellow? may you not yellow? may he not yellow? may we not yellow? may you not yellow? may they not yellow?
V-ing form
may I not be yellowing? may you not be yellowing? may he not be yellowing? may we not be yellowing? may you not be yellowing? may they not be yellowing?
Perfect
may I not have yellowed? may you not have yellowed? may he not have yellowed? may we not have yellowed? may you not have yellowed? may they not have yellowed?
V-ing perfect
may I not have been yellowing? may you not have been yellowing? may he not have been yellowing? may we not have been yellowing? may you not have been yellowing? may they not have been yellowing?