could sow
Irregular verb: sow - sowed- sown, sowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could sow
you could sow
she could sow
we could sow
you could sow
they could sow 	I could be sowing
you could be sowing
she could be sowing
we could be sowing
you could be sowing
they could be sowing	I could have sown, sowed
you could have sown, sowed
she could have sown, sowed
we could have sown, sowed
you could have sown, sowed
they could have sown, sowed	I could have been sowing
you could have been sowing
she could have been sowing
we could have been sowing
you could have been sowing
they could have been sowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't sow
you couldn't sow
she couldn't sow
we couldn't sow
you couldn't sow
they couldn't sow 	I couldn't be sowing
you couldn't be sowing
she couldn't be sowing
we couldn't be sowing
you couldn't be sowing
they couldn't be sowing	I couldn't have sown, sowed
you couldn't have sown, sowed
she couldn't have sown, sowed
we couldn't have sown, sowed
you couldn't have sown, sowed
they couldn't have sown, sowed	I couldn't have been sowing
you couldn't have been sowing
she couldn't have been sowing
we couldn't have been sowing
you couldn't have been sowing
they couldn't have been sowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I sow?
could you sow?
could she sow?
could we sow?
could you sow?
could they sow? 	could I be sowing?
could you be sowing?
could she be sowing?
could we be sowing?
could you be sowing?
could they be sowing? 	could I have sown, sowed?
could you have sown, sowed?
could she have sown, sowed?
could we have sown, sowed?
could you have sown, sowed?
could they have sown, sowed? 	could I have been sowing?
could you have been sowing?
could she have been sowing?
could we have been sowing?
could you have been sowing?
could they have been sowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I sow?
couldn't you sow?
couldn't she sow?
couldn't we sow?
couldn't you sow?
couldn't they sow? 	couldn't I be sowing?
couldn't you be sowing?
couldn't she be sowing?
couldn't we be sowing?
couldn't you be sowing?
couldn't they be sowing? 	couldn't I have sown, sowed?
couldn't you have sown, sowed?
couldn't she have sown, sowed?
couldn't we have sown, sowed?
couldn't you have sown, sowed?
couldn't they have sown, sowed? 	couldn't I have been sowing?
couldn't you have been sowing?
couldn't she have been sowing?
couldn't we have been sowing?
couldn't you have been sowing?
couldn't they have been sowing?