I could palpate you could palpate he could palpate we could palpate you could palpate they could palpate
V-ing form
I could be palpating you could be palpating he could be palpating we could be palpating you could be palpating they could be palpating
Perfect
I could have palpated you could have palpated he could have palpated we could have palpated you could have palpated they could have palpated
V-ing perfect
I could have been palpating you could have been palpating he could have been palpating we could have been palpating you could have been palpating they could have been palpating
Negation
Simple form
I couldn't palpate you couldn't palpate he couldn't palpate we couldn't palpate you couldn't palpate they couldn't palpate
V-ing form
I couldn't be palpating you couldn't be palpating he couldn't be palpating we couldn't be palpating you couldn't be palpating they couldn't be palpating
Perfect
I couldn't have palpated you couldn't have palpated he couldn't have palpated we couldn't have palpated you couldn't have palpated they couldn't have palpated
V-ing perfect
I couldn't have been palpating you couldn't have been palpating he couldn't have been palpating we couldn't have been palpating you couldn't have been palpating they couldn't have been palpating
Interrogative form
Simple form
could I palpate? could you palpate? could he palpate? could we palpate? could you palpate? could they palpate?
V-ing form
could I be palpating? could you be palpating? could he be palpating? could we be palpating? could you be palpating? could they be palpating?
Perfect
could I have palpated? could you have palpated? could he have palpated? could we have palpated? could you have palpated? could they have palpated?
V-ing perfect
could I have been palpating? could you have been palpating? could he have been palpating? could we have been palpating? could you have been palpating? could they have been palpating?
Interro-negative form
Simple form
couldn't I palpate? couldn't you palpate? couldn't he palpate? couldn't we palpate? couldn't you palpate? couldn't they palpate?
V-ing form
couldn't I be palpating? couldn't you be palpating? couldn't he be palpating? couldn't we be palpating? couldn't you be palpating? couldn't they be palpating?
Perfect
couldn't I have palpated? couldn't you have palpated? couldn't he have palpated? couldn't we have palpated? couldn't you have palpated? couldn't they have palpated?
V-ing perfect
couldn't I have been palpating? couldn't you have been palpating? couldn't he have been palpating? couldn't we have been palpating? couldn't you have been palpating? couldn't they have been palpating?