Какую форму глагола мы используем после should и shouldn't

используем первую форму. после всех модальных глаголов ставится первая форма

A: hi! b: hello! long time no talk. what's new?   a: oh, as you know, every year i do sport to lose some weight. well, i just started that again. i think i gained a lot this i hate it so much.  b: yes, i remember. what do you do to lose weight? a: i jog every morning, it's very helpful for your body and health.  b: you know, i was thinking about that this evening. should i jog too? a: of course you should! let's jog with me, you live nearby so it's not a problem.  b: that sounds cool! let's meet here tomorrow morning. a: sure! don't you want to visit me afterwards? i can make some fresh juice. i insist you to taste it, it's really amazing!   b: that would be nice. a: it consists of apples, oranges and pineapples. i really love it, it's a cause of my happy mood. b: yes, i noticed, you're very cheerful. is it supposed do be like that? a: what do you mean?   b: nothing, that was a joke. anyway, it's getting dark. see you tomorrow. a: sure! i believe we can lose weight together!

L. 1 do you think he can do it by himself? 2 we are going to the shops by ourselves. 3 i cooked dinner by myself. 4 the doctor told pat and john to look after themselves. 5 did you hurt yourself badly in the accident? 6 the lamp switched off by myself li. 1. julie fell out with her brother because he wasn’t nice to her. 2. this book is falling out. i have to buy a new one. 3. he fell behind in his work because he was on holiday. lll. 1 jane didn’t go to work today as she had a stomach ache. 2 tom has sprain his back and has to rest. 3 he has a high t emperature. i think he’s coming down with the flu . 4 can i have some tea with honey, please? my throat is sore . 5 what’s wrong with your wrist? did you hurt it? 6 you have to go to a dentist when you chip a tooth. iv. 1 to move house 2 to argue with someone 3 to sit an exam 4 to throw a party 5 to lose something valuable v. a 1.wash with cold water (e) 2.eat a light meal (c) 3. get a painkiller (а) 4. put cool pack on your forehead (b) 5. take some rest (f) 6. drink plenty of fluids (d)