English verb conjugation
COULD HOUSE-SIT

Irregular verb: house-sit - house-sat - house-sat

Affirmation

Simple form	V-ing form
I could house-sit you could house-sit he could house-sit we could house-sit you could house-sit they could house-sit	I could be house-siting you could be house-siting he could be house-siting we could be house-siting you could be house-siting they could be house-siting
Perfect	V-ing perfect
I could have house-sat you could have house-sat he could have house-sat we could have house-sat you could have house-sat they could have house-sat	I could have been house-siting you could have been house-siting he could have been house-siting we could have been house-siting you could have been house-siting they could have been house-siting

Negation

Simple form	V-ing form
I couldn't house-sit you couldn't house-sit he couldn't house-sit we couldn't house-sit you couldn't house-sit they couldn't house-sit	I couldn't be house-siting you couldn't be house-siting he couldn't be house-siting we couldn't be house-siting you couldn't be house-siting they couldn't be house-siting
Perfect	V-ing perfect
I couldn't have house-sat you couldn't have house-sat he couldn't have house-sat we couldn't have house-sat you couldn't have house-sat they couldn't have house-sat	I couldn't have been house-siting you couldn't have been house-siting he couldn't have been house-siting we couldn't have been house-siting you couldn't have been house-siting they couldn't have been house-siting

Interrogative form

Simple form	V-ing form
could I house-sit? could you house-sit? could he house-sit? could we house-sit? could you house-sit? could they house-sit?	could I be house-siting? could you be house-siting? could he be house-siting? could we be house-siting? could you be house-siting? could they be house-siting?
Perfect	V-ing perfect
could I have house-sat? could you have house-sat? could he have house-sat? could we have house-sat? could you have house-sat? could they have house-sat?	could I have been house-siting? could you have been house-siting? could he have been house-siting? could we have been house-siting? could you have been house-siting? could they have been house-siting?

Interro-negative form

Simple form	V-ing form
couldn't I house-sit? couldn't you house-sit? couldn't he house-sit? couldn't we house-sit? couldn't you house-sit? couldn't they house-sit?	couldn't I be house-siting? couldn't you be house-siting? couldn't he be house-siting? couldn't we be house-siting? couldn't you be house-siting? couldn't they be house-siting?
Perfect	V-ing perfect
couldn't I have house-sat? couldn't you have house-sat? couldn't he have house-sat? couldn't we have house-sat? couldn't you have house-sat? couldn't they have house-sat?	couldn't I have been house-siting? couldn't you have been house-siting? couldn't he have been house-siting? couldn't we have been house-siting? couldn't you have been house-siting? couldn't they have been house-siting?